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), casters diameter: 2.5 inch. HEAVY DUTY CREEPER CASTERS: Each swivel caster wheel supports 100 lbs. Suitable for carts, chairs, cabinets, or other furniture. These caster wheels make it easier to move tables, seats, shelves, and other heavy items. SMOOTH & QUIET MOVEMENT: Smooth, quiet, and non-marking polyurethane swivel caster wheels. Allows flexible movement of scaffolds, mechanic creepers, and easy positioning. MULTIPURPOSE USE: Replacement casters ideal for mechanic's creepers, service carts, cabinets, stools, chairs, and more. 2.5 INCH SWIVEL CASTER WHEELS: Heavy-duty steel axle with rust-resistant chrome finish. 360-degree swivel design. For 4 Pack, reference ASIN B091BSHV2S. For 6 Pack, reference ASIN B07XF9VS8R. For 12 Pack, reference ASIN B091BTNJR3.