With the hollow design the tires have a diameter of 6.5 cm and a thickness of 2 cm. Tires are wrapped with quakeproof flexible glue so the taken images are stable but not beating and the route wont be changed during the shooting process. The tires can be set to move in a straight line or 45 degrees towards the left or the right side. It can be equipped with a cradle head. Besides there are standard 1/4 screwed joints on the car tablet so its convenient to install a deflecting support and other devices. The product is suitable for various kinds of portable professional cameras SLR and Gopro cameras.