NIUNIU Transfer Bearing Casters,Roller Ball Transfer Bearing Casters Unit Mounted Flange Metal Steel Universal Conveyor Transferring Wheel for Power Systems Processing and Packaging Machinery Sturdy material The transfer bearing wheel is made of galvanized carbon steel, which is durable, and has a long service life. Flexible changes According to different load requirements, the distribution density of the universal ball can be set arbitrarily, making your work easier. Easy to installThe transfer bearing wheel has two mounting holes for screw mounting, so you can easily fix it on the equipment. Wide applicationIt is suitable for all walks of life, such as mechanical hardware, chemical industry, food warehouse, store display and transportation to and from the airport. It is also an auxiliary equipment for processing systems, processing machinery and packaging machinery. Color: silver Size: 47x15mm Quantity: 5pcs 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.