Features: Mute Universal Casters Wheel: These casters are designed to move silently and smoothly making them perfect for use in any household or office environment. Wear-Resistant Smooth Mini Wheel Casters: These casters are made from premium materials that are wear-resistant and long-lasting. 360 Rotatable Ball Pulley Swivel Casters: These casters are designed to be highly maneuverable with a 360 rotatable ball pulley that allows for easy movement in any direction. Quality Casters For Furniture: These casters are made from durable material which provides excellent grip ability and stability. After-sale Service: We strive to provide each customer with the highest standard of customer service. Please don't hesitate to get in touch with us if you have any inquiries and we will respond satisfactorily. Specification: Type: Reusable Material: ABS Quantity: 4pcs/set Notes: 1. Due to the lighting effects and shooting angles there is a color difference in the product please understand. 2. Due to manual measurement there is a tolerance in the product size. includes: 4 *Casters Wheel