Suitable for ages 3+187-Piece building blocks setTurn on the switch for music and move the marbles up the slide!High speed rolling with clever mechanicsUses 1 x 1.5V AAA + 3 x 1.5V AA Batteries (not included)Package Contents:1 x Building Blocks SetMaterial: PPAge: 3 Years and upBattery: 1 x 1.5V AAA + 3 x 1.5V AA Batteries (not included)Package Size: 55 x 39.5 x 9.5 cm