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Nex vertical viper coaster - vertical,

Nex vertical viper coaster - vertical,

€11.33
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Nex thrill rides - k'nex, mecha

Nex thrill rides - k'nex, mecha

€18.85
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Knex ferris wheel - knex,

Knex ferris wheel - knex,

€21.50
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Nex space tower - space, set

Nex space tower - space, set

€52.70
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Nex beginner fun - k’nex,

Nex beginner fun - k’nex,

€6.99
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Nex mixed bundle - k'nex, parts

Nex mixed bundle - k'nex, parts

€11.87
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Vintage 1990s nex large - 1990s,

Vintage 1990s nex large - 1990s,

€16.15
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Nex bulk lot - k'nex, assorted

Nex bulk lot - k'nex, assorted

€8.66
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Mixed approx 1kg job - 1kg,

Mixed approx 1kg job - 1kg,

€9.19
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Vintage nex 80s s - k’nex, 90’s

Vintage nex 80s s - k’nex, 90’s

€20.00
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Nex trains planes - k’nex,

Nex trains planes - k’nex,

€25.99
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Nex city builders - k'nex,

Nex city builders - k'nex,

€12.40
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Vintage nex large yellow - large,

Vintage nex large yellow - large,

€29.99
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Kids nex dino - 30, model

Kids nex dino - 30, model

€37.10
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Large knex bundle with - knex, branded

Large knex bundle with - knex, branded

€37.10
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Nex kid bulk - kid, k'nex

Nex kid bulk - kid, k'nex

€9.72
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Nex 6ft motorised ferris - k'nex,

Nex 6ft motorised ferris - k'nex,

€182.70
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Nex kid education - k'nex, k'nex

Nex kid education - k'nex, k'nex

€7.05
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Nex classics 206 - 206, 12

Nex classics 206 - 206, 12

€9.99
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Nex thrill rides cobra - k'nex,

Nex thrill rides cobra - k'nex,

€8.99
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Knex bunch builds - builds, building

Knex bunch builds - builds, building

€6.52
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Vintage 1993 nex - vintage,

Vintage 1993 nex - vintage,

€26.70
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Knex battlers saw zaw - 'battlers, zaw'

Knex battlers saw zaw - 'battlers, zaw'

€4.91
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Nex pac man roller - k’nex, pac-man

Nex pac man roller - k’nex, pac-man

€23.58
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Knex knexcavator and - -,

Knex knexcavator and - -,

€3.37
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Knex bundle 850g wheels rods - knex,

Knex bundle 850g wheels rods - knex,

€11.86
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Nex building set - building,

Nex building set - building,

€33.98
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Vintage nex red carry - red, case

Vintage nex red carry - red, case

€21.50
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Nex 12076 creatures - creatures, value

Nex 12076 creatures - creatures, value

€45.99
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Nex 417 piece building - piece,

Nex 417 piece building - piece,

€32.99
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Nex orange hard case with - hard,

Nex orange hard case with - hard,

€15.00
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110 knex nex bricks - bricks, few

110 knex nex bricks - bricks, few

€8.12
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Nex model building - model, set

Nex model building - model, set

€8.66
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Vintage nex large black - vintage,

Vintage nex large black - vintage,

€29.99
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Nex building set 417 - k’nex,

Nex building set 417 - k’nex,

€29.82
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Vintage nex large grey - k’nex,

Vintage nex large grey - k’nex,

€29.99
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Nex screamin serpent - screamin',

Nex screamin serpent - screamin',

€104.70
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Nex basic fun building - fun,

Nex basic fun building - fun,

€15.08
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Knex explorer set - knex,

Knex explorer set - knex,

€31.64
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Nex vintage carry case - vintage, with

Nex vintage carry case - vintage, with

€31.90
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Nex model ultimate - k'nex,

Nex model ultimate - k'nex,

€29.99
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Kid nex zoo - kid, friends

Kid nex zoo - kid, friends

€11.87
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Nex 47525 kforce battle - -,

Nex 47525 kforce battle - -,

€9.99
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Nex imagine deluxe - imagine,

Nex imagine deluxe - imagine,

€9.73
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Nex bulk lot rods - bulk,

Nex bulk lot rods - bulk,

€16.15
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Nex 20x force build - k,

Nex 20x force build - k,

€10.00
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Nex imagine model - k'nex,

Nex imagine model - k'nex,

€10.00
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Genuine silver bk orange - x,

Genuine silver bk orange - x,

€10.80
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Massive nex building - massive,

Massive nex building - massive,

€31.89
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Nex job lot bundle - job,

Nex job lot bundle - job,

€10.26
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Knex nex volt - 12,

Knex nex volt - 12,

€20.43
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Nex set 45015 807 pieces - k'nex,

Nex set 45015 807 pieces - k'nex,

€11.87
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Knex with wheels flexi parts - knex,

Knex with wheels flexi parts - knex,

€12.99
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Kid knex bundle job - , lot

Kid knex bundle job - , lot

€16.15
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Kid nex budding - kid, k'nex

Kid nex budding - kid, k'nex

€8.66
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Nex motorised ferris wheel - motorised,

Nex motorised ferris wheel - motorised,

€10.00
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Vintage nex construction - k’nex,

Vintage nex construction - k’nex,

€12.94
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Nex bundle with - bundle,

Nex bundle with - bundle,

€26.69
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Nex maxima 23505 - k'nex,

Nex maxima 23505 - k'nex,

€1.70
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Nex light ferris wheel - up,

Nex light ferris wheel - up,

€16.15
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Nex job lot about 1 - k'nex,

Nex job lot about 1 - k'nex,

€6.52
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Nex 150 piece bundle mix - k'nex,

Nex 150 piece bundle mix - k'nex,

€5.02
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Nex 7kg bundle of - 1.7kg, rods

Nex 7kg bundle of - 1.7kg, rods

€9.99
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Nex education swing - k'nex,

Nex education swing - k'nex,

€11.99
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Nex mega boom force - k'nex, build

Nex mega boom force - k'nex, build

€10.00
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1995 vintage knex - knex, set

1995 vintage knex - knex, set

€5.45
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Knex assorted - (k'nex),

Knex assorted - (k'nex),

€6.52
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Nex orange way connector - 2-way,

Nex orange way connector - 2-way,

€1.16
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Nex assorted vintage - k'nex,

Nex assorted vintage - k'nex,

€8.00
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Nex moto bots series 3 - k'nex,

Nex moto bots series 3 - k'nex,

€11.00
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Job lot mixed bundle - job, )

Job lot mixed bundle - job, )

€9.73
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Nex bundle job - bundle, lot

Nex bundle job - bundle, lot

€3.50
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Nex value tub 400 pieces - pieces, in

Nex value tub 400 pieces - pieces, in

€11.00
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Nex creation zone box - k'nex,

Nex creation zone box - k'nex,

€16.15
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Nex titanfall imc atlas - k’nex,

Nex titanfall imc atlas - k’nex,

€21.50
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Nex kid bulk - kid, lot

Nex kid bulk - kid, lot

€12.20
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Knex nex plane building - k'nex,

Knex nex plane building - k'nex,

€2.00
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Pieces nex battery motor - 5, k’nex

Pieces nex battery motor - 5, k’nex

€26.70
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Knex purple way - way, connector

Knex purple way - way, connector

€2.24
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Large nex bundle job lot - k’nex,

Large nex bundle job lot - k’nex,

€31.90
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Knex 85049 motorised creations - motorised,

Knex 85049 motorised creations - motorised,

€6.52
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Nex grey rods - k', 190mm

Nex grey rods - k', 190mm

€4.75
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Vintage knex set - knex,

Vintage knex set - knex,

€5.95
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Nex blazing bikes 17034 - bikes,

Nex blazing bikes 17034 - bikes,

€6.52
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Mix vintage nex bundle - k'nex, parts

Mix vintage nex bundle - k'nex, parts

€11.33
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Nex big ball factory - k'nex,

Nex big ball factory - k'nex,

€99.50
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Nex storm mountain glow in - storm,

Nex storm mountain glow in - storm,

€49.99
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Nex mixed bundle - k'nex,

Nex mixed bundle - k'nex,

€5.44
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Nex star shooter roller - star,

Nex star shooter roller - star,

€12.94
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Knex force super strike - knex,

Knex force super strike - knex,

€19.99
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Nex power set 24127 - set,,

Nex power set 24127 - set,,

€25.66
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Nex spares parts rods - parts,

Nex spares parts rods - parts,

€2.23
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Nex 23012 imagine - imagine, and

Nex 23012 imagine - imagine, and

€17.00
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Mixed approx 7kg job lot - mixed,

Mixed approx 7kg job lot - mixed,

€12.99
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Nex bundle hyperspace - bundle,

Nex bundle hyperspace - bundle,

€208.70
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Nex bundle and box - bundle,

Nex bundle and box - bundle,

€12.94
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📊96 listings · from €1.16 · avg €21.44

Browse 96 knex listings currently in our index. Prices range from €1.16 to €208.7, with an average of €21.44. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about knex →

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Everything you need to know about knex

Whether you are looking for a brand-new or second-hand knex, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at €1.16, while premium listings can reach €208.7 — giving you a wide budget spread to work with. The average price of €21.44 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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