Sidewinder Techno Gears Marble Mania is the newest addition to the Learning Journey's Techno Gears building toys series. This high tech gears construction set includes 230 pieces to build and create your own introductory marble and gear run. Sidewinder Techno Gears Marble Mania features a hand crank to move the marbles through the spiral lifter to the top of the twisting and turning tracks. When assembled, this gears marble run allows children to watch their marbles drop, spin and roll through their own fun and exciting creation. This 230 pcs Techno Gears construction toy from Educational Toys Planet will promote the principles of mechanics and teach kids great building skills.