DescriptionMade of nylon, steel and aluminum alloy material, it is sturdy and durable. Heavy-duty casters, Excellent for industrial casters. It can be adjusted horizontally by rotation to achieve good vibration resistance and long service life. Nylon caster prevents scratching the ground.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 - Leveling casters come with non-skid pad, aluminum alloy body, wear-resistant nylon wheel. -Non-slip wear-resistant, stable and easy to drive, the screw setting is easy to expand. -The height can be adjusted, the anti-skid support base is safe and stable. -360-degree casters: Swivel plate with double ball bearing design, flexible to move and rotate. -Easily move heavy workbench or furniture to desired location.