The leveling caster with nylon wheel, aluminum alloy bracket wheel control is more labor-saving, more sturdy, more bearing capacity. Each caster can to 500kg/1102 lbs. Suitable for large , industrial , facilities, beauty, electronics, workshop , stands, copiers, printers, etc. Features -Color: White. -Material: Nylon, steel, aluminum alloy. -Size: 12.00X9.00X10.30cm;/4.72X3.54X4.05in; -Installation hole distance: 70 X 70mm/2.75x2.75inch -Installation hole size: 9mm/0.35inch -Installation screw size: m8 -Height: 15mm/0.59inch -The center distance between plate and wheel: 46mm/1.81inch -Overall height: 103mm/4.1inch -Load capacity of one caster: 500kg/1102lbs -Load capacity of four casters: 1000kg/2205lbs - Also suitable for automation enclosures and manufacturing machinery, diagnostic , shop , etc. - Suitable for modular framing enclosures, electronic enclosures, , stands, printers, copiers, etc. - Made of , carefully craftsmanship, for use, smooth surface. - With rotating plates, not easily to break or deform, good loading capacity, long serving life. - Easy and quick to install, very convenient for use. With these casters, you will enjoy stable workbench transport. Package list: 4 x Casters