Designing and constructing your own creations has never been this much fun. Techno Gears Marble Mania Extreme is a 325 piece marble run and gears set with the "Power Lifter" that automatically returns your marbles to the top of the run. The set includes everything necessary to build and "Power-Up" hundreds of marble run designs: spinners, channels, mills, funnel, pendulum, gears, motor, 3-D connectors, shafts, the "Power Lifter" and much more. Compatible with all Techno Gears products. Requires one "AA" battery. Recommended for ages eight and up. Bilingual English and Spanish packaging.