Construct a functioning model with flexible, moving parts or create a work of art with this unique buildable art system. The precision quality pieces swivel, ratchet and snap together in countless configurations, with engaging ratchet sound. Build a helicopter, spider robot, drag racer or one of 15 other fun creations...better yet, design your own! 215 pieces with handy storage jar.
Crazy Cranking Construction! The Award Winning Superstructs Wacky Machines building
set features 175 durable plastic pieces including 16 large gears and plans to build 7 truly wacky models. Step by ...
Building Your Imagination Award winning 3D design & construction system
by architect, author & designer Lester Walker Solid wood rods & planks coupled with geometric precision Deluxe Activity Guide Ages ...