Heavy Duty Caster Wheels (Set of 4) Leveling Retractable Workbench Castors,Industrial Transport Swivel Caster,for Furniture,Welding Table,Loading Capacity 250kg Per Castor,80F

✎High quality: The aluminum alloy shell has low density, high strength, excellent electrical conductivity, thermal conductivity and corrosion performance. The exterior is sprayed with galvanized, beautiful and rust-proof. ✎Unique design: high-level adjustable, free expansion, screw setting rotation to easily adjust the height, retract the support block when moving, prop up when fixed, scientific and reasonable design, convenient and simple. ✎Nylon casters: wide wheel surface, increased contact with the ground, strong impact resistance, stable and easy driving, good corrosion resistance and wear resistance, smooth and bright surface, beautiful and simple. ✎Worry-saving and labor-saving: The high-carbon steel balls are used inside the wheels, which are flexible and smooth, and run worry-free. They have high strength and hardness, and can easily move objects to the desired place, ensuring safety. ✎The machine is a good partner: a good machine needs to be equipped with good casters, which have the function of level adjustment and support, which is very suitable for auxiliary movement of heavy machinery, furniture, etc., and is easy to replace and install.