8Pcs Steel Ball Transfer Casters 360 Degree Universal Roller Ball Bearing

Ball bearing wheels: smooth and silent moving, good load-bearing, sliding ball wheel; Universal wheel: featuring two screw holes in each bearing surround for solid attachment to the worktable or workbench, universal ball casters; Ball casters: with practical design, wear resistant and shockproof, ball transfer unit universal; Mini caster wheels: widely used in lines installing, home appliance, transmission system, processing system, wooden case, transmission furniture, workbench, etc, steel ball roller; Small wheel: this ball transfer units are used for transporting flat, smooth objects such as trays, steel ball bearing

What's in the box
8 x Castor Wheels