K'Nex Thrill Rides Twisted Lizard Roller Coaster Building Set 402 Pcs Open Box

K'NEX Kraken's Revenge Roller Coaster Building Set 568pc Thrill Rides Motorized

K'NEX Raptor's Revenge Roller Coaster Factory Sealed With Knex Carrying Case

2005 K'NEX SHARK RUN ROLLER COASTER Motorized Fun Toy Kids Kit Building

K'NEX Thrill Rides Bionic Blast Roller Coaster Building Set Unopened - Free S&H

K'NEX Web Weaver Roller Coaster Building Set 439pcs

K'NEX Steel Scorpion Roller Coaster Set Motorized Used - Possibly Incomplete

K'NEX THRILL RIDES KRAKENS REVENGE ROLLER COASTER BUILDING SET *NEW