ITEM NAME:SP-15 Ball Bearing for Install Machined Steel Ball Bearing Roller Newest Useful.It is portable and easy to carry. ï ¼Ë†4ï ¼â€°Ã£â‚¬ Function】Ball transfer bearings are 360 degree rotate could help you roll the wheelchair to every coner in the room. Ball support cup is hardened and plated, protective cover assures low torque and longevity.
