Champion Friction Powered 6-inch Construction Trucks Set of 6 6-inch bright yellow construction trucks - set of 6 plastic trucks Moveable parts and friction motor action - never needs batteries - Parents Love Them!! Set includes: 2 dump trucks with tilting bed; 2 excavator shovels with moving boom; and 2 cement mixers with rotating barrel Durable die cast plastic - rust proof - great for indoor or outdoor play dimensions: 6 x 3 x 2.5 inches