you receive 35 pieces roller ball set,meets most industrial and commercial needs,whether you're a DIY enthusiast working on a project or a professional in need of quality casters, our product decreases the need for frequent replacements. Made from hard, wear- carbon steel, these roller boast a bright, The smooth silver not only enhances their aesthetic appeal but also adds a protective layer, making they to rust and , thereby ensuring a prolonged lifespan. These rollers for furniture provide 360 degree maneuverability,This enhances efficiency, especially in transferring goods in directions, The seamless rotation reducing operational effort, and time. Each ball transfer roller with a load capacity of 55-66 lbs. They demonstrate unmatched strength and durability when moving heavy items, ensuring efficient service without compromising the integrity or of your items. Universal rotation ball casters can be widely used in conveyor lines installing, processing system, wooden case, transmission furniture, workbench, home appliance, transmission system, etc. Colour:Silver Material:steel Package Contents: 1 set x ball bearing rollers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.