K'NEX Web Weaver roller coaster building set ispack This fun and engaging construction

This fun and engaging construction set for children helps develop hand-eye coordination

K'NEX Sound unit for Sonic Blizzard/Lava Launch

colour-coded hydrogen bonds

Future car

K'NEX Web Weaver roller coaster building set ispack This fun and engaging constructionThis is one web you'll want to get caught in the K'NEX Web Weaver Roller Coaster Building Set! Use the included parts and pieces to send the unique air propelled coaster car through horizontal and vertical thrills. Once done building, turn off the lights this coaster glows in the dark! Set includes over 430 K'NEX parts and pieces, including rods, connectors, glow in the dark track and an air propelled coaster car. Additionally, builders can download