Battat products are designed with your pre-schooler in mind. This sturdy Take-A-Part Crane from Battat is 11.25″ X 5.25″ X 10″ in size and features 30 vehicle parts, and a power screw driver with 3 different bits. Big nuts and bolts for little hands. Perfect for ages 3 years and up. Requires two AA batteries-not included.