Building engineering construction from motorized gears is such a fun and educational activity! The Techno Gears - Marble Mania Apprentice kit is a terrific techno-gears set from the Learning Journey. The award-winning Marble Mania Apprentice construction kit allows your children to design and build a motorized marble run. This marble roller coaster set comes with more than 200 high quality pieces including colorful gears, channels, unique sidewinder, stair step parts, and more. A motorized elevator lifts marbles to the top of the structure to launch their exciting run from their. Never ending fun to build with this construction toy and observe the rolling marbles! This building toy set helps the children to understand the basics of mechanics and physics of motion. Techno Gears G Marble Mania Apprentice is compatible with all Techno Gears products from Educational Toys Planet. Requires one AA battery (not included). Take a look at Techno Gears - Marble Mania Apprentice product sheet here