It saves your financial costs and also protects and decorates your furniture, which will be a satisfying and enjoyable shopping experience. Name: Office chair casters Function: 360-degree rotation, no noise. Packing: 5× office chair casters Material: Polyurethane Size: 2in(50mm) Color: Black / Grey Carrying capacity: 250kg Adaptation range: office chairs, cribs, small equipment, furniture, cabinets, shelves, display stands, plant stands, bookshelves, trolleys, workbench, mobile industrial equipment, etc. Tips: ■ Product transportation time is generally 15-20 days, please be patient and wait for the surprise. If you have any questions, please do not hesitate to contact us. ■ All products are taken in kind and manually measured. Due to the shooting angle, light and display, there will be inevitable slight chromatic aberration and error. ■ If you are satisfied with this purchase, please give us a good evaluation of the store and the product, we will be very honored.