SET OF 6 CREEPER WHEELS: 6 Pack x 2.5 inch 360 Degree Swivel Stem Caster. Threaded-post mount design, stem size: M10x25mm(D*H), castors diameter:2.5 inch.HEAVY DUTY CREEPER CASTERS: Each swivel caster wheels loading 100 lbs. Heavy enough and widely suit for carts, chairs, cabinet or other furniture. With these creeper caster wheels replacement, energy saving and easy to move the table, seat, shelf or other heavy things.SMOOTH & QUITE MOVEMENT: Smooth, quiet and non-marking polyurethane swivel caster wheels. With this castor wheels, you can flexibly move your scaffold, mechanics creeper to what you need to, and fix it easily and steadily.MULTIPURPOSE: Creeper replacement casters widely use for mechanic's creeper, service carts, cabinets, stools & chairs and more.2.5 SWIVEL CASTER WHEELS: Heavy duty steel axle, rust resistant chrome finished 360-degree swivel creeper caster wheels. For 4 Pack, reference to ASIN B091BSHV2S. For 6 Pack, reference to ASIN B07XF9VS8R. For 12 Pack, reference to ASIN B091BTNJR3.