Usage Tips:SET OF 6 CREEPER WHEELS: 6 Pack x 2.5 inch 360 Degree Swivel Stem Caster. Threaded-post mount design, stem size: M10x25mm(DH), casts diameter:2.5 inch. HEAVY DUTY CREEPER CASTERS: Each swivel caster wheels loading 100 lbs. Heavy enough widely suit f carts, chairs, cabinet other furniture. With these creeper caster wheels replacement, energy saving easy to move the table, seat, shelf other heavy things. SMOOTH and QUITE MOVEMENT: Smooth, quiet non-marking polyurethane swivel caster wheels. With this cast wheels, you can flexibly move your scaffold, mechanics creeper to what you need to, fix it easily steadily. MULTIPURPOSE: Creeper replacement casters widely use f mechanic"s creeper, service carts, cabinets, stools and chairs me. 2.5 SWIVEL CASTER WHEELS: Heavy duty steel axle, rust resistant chrome finished 360-degree swivel creeper caster wheels. F 4 Pack, reference to ASIN B091BSHV2S. F 6 Pack, reference to ASIN B07XF9VS8R. F 12 Pack, reference to ASIN B091BTNJR3. Our products are made with the highest quality materials are designed to provide you with the best possible user experience. We strive to ship out all ders within three days of purchase, the estimated delivery time is 8-15 days. When shopping, please pay attention to the size dimensions of the product to ensure that it meets your needs. In the title , we have provided detailed infmation about the product, including its features specifications We want you to be completely satisfied with your purchase, so if you have any questions concerns, please don't hesitate to contact us. We are here to help will do our best to assist you. Thank you f choosing our product. We hope you enjoy it