Irfora80cm /32 4 Bearings Camera Rail Track Aluminum Alloy Video Stabilizer for Canon Nikon Sony Cameras Camcorders Max Load, Capacity 5 Kg

The wheels were broken and seller good guy sent me bearing wheels but charges and recommended for beginners

Very good and smooth .. only thing it comes without manual but it's fine

it came without a very important part- which is the locker screw that locks the camera from sliding. which is the main purpose from the product