This is a very affordable clearance item from a small, small shop. Material: PVC, lightweight wood mixed with moisture-resistant plastic Size (cm): 13 x 7 x 5 The wheels are fixed and do not rotate, but the item moves up and down like a seesaw with the hamster's movement. Please note that the color may differ slightly depending on the shooting environment. Please understand that returns and exchanges are not possible for this limited edition item. White pt0219