Plate machines, 360 degree rotation, integrated precision double bearings, quiet, wear-resistant, stable and durable. It is widely used and saves labor when sanding. Heavy duty rotating fixations, non-marking wheels. It is ideal for various oasions such as industrial applications, households, schools, shops and hospitals. These rotating fixers can be used indoors and outdoors and are the assistants for mobile devices. Perfect spare parts, widely used machines, trolleys, furniture and household appliances. Suitable for all types of floors. ?Product Specifications? Material: Polypropylene (PP), Metal Color: Black Wheel width: 32 mm 1.3 inch Wheel diameter: 75 mm 3 inch, 100 mm 4 inch Installation height: 107 mm 4 .2 inch, 131 mm 5.2 inch Mounting plate size: 92 x 64 mm 3.6 x 2.5 inch Mounting plate hole distance: 73 x 44mm 2.9 x 1.7 inch Rated load: 300kg, 360kg Package includes: 4pcs ?Note? All products are measured manually. Due to the influence of shooting angle, light and viewing angle, slight errors and chromatic aberrations will inevitably our. Thank you for your understanding.USE FOR MULTIPLE USES: These castor wheels are perfect for so many different uses. Use them for industrial shelving, storage units, toolboxes and work saw benches. You can use them around the home for furniture such as kitchen islands, desks, ottomans, toy shoe bins, outdoor planters, shelves, coffee tables, chairs, and cabinets. Additionally, use them for display exhibition equipment, flight instrument cases, dollies, speakers, and many different types of machinery equipment. Suitable for garden gates, entrance gates and yard fences, semicircular gates, sliding doors, etc. Features: Built-in double bearings, high mechanical strength, wear resistance, shock absorption, high pressure resistance. It can rotate 360 degrees, slide smoothly and rotate flexibly. Thicken the mounting plate to increase the load capacity and maintain stability and strength. Practicality: Ourers can be used to replace various damaged or difficult to use household appliances and furniture wheels. Provide excellent stability and load capacity. Materials: The flaters are made of black polypropylene (PP) and metal, with galvanized brackets, non-slip, silent and beautiful.