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:Assorted Color -Material:Nylon, steel, aluminium alloy -Size:7.30X5.80X8.30cm/2.87X2.28X3.26in -Note: 60F- 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 conveniently, the anti-skid support base is safe and stable.-360-degree casters: Swivel plate bearing design, flexible to move and rotate. The casters are also easy to install and remove using simple fittings.- The multi-use caster can help you e asily move heavy workbench or furniture to desired location.