The accessories on the vehicle can be lifted or rotated to improve playability(the back cover of the water tanker can be opened by rotation). 【Good Playability】This friction powered garbage truck toy Vehicles set includes garbage trucks×1, water tankers×1, sanitation trucks×1 and road sign(The style of workers varies with the batch, and you will receive randomly). Products rely on inertia to move, do not need batteries.Give the truck a forward force, it can move forward for a distance.