【HEAVY-DUTY CASTERS】:NINOSO Caster wheels are made of superior polyurethane tread on polypropylene core with strong abrasion resistance, silent shock absorber, wearproof, no drag marks and enhance the impact resistance of the whole caster. 【PERFECT SIZE DESIGN】：Industrial caster diameter: 5 inches, width: 2 inches.top plate: 4-1/2&width4, The heavy duty casters wheels can withstand most chemicals, solvents, acids and oils, without fear of any environment, giving you a perfect experience. --A single wheel can carry 800lbs, 4 wheels for cart can carry 3200lbs. 【SMOOTH-RUNNING WHEELS】:The newly upgraded wheels for high-grade material polyurethane, The Heavy Duty Caster wheels structure is stable and the wheels run smoothly, which completely bid farewell to the annoying noise of traditional Grocery Cart Wheels that are easy to jam and make loud noises.Non-Marking floor safe wheel . 【Widely Used】:Uitable for The Heavy Duty Wheel can be easily installed and used, and are designed for handling. outdoor caster have a wide range of uses, such as pallet trucks, inventory carts, trolleys, platform carts, furniture, luggage carts, workbenches and many other uses. store fixtures, and more Built in Roller Bearing & Spanner Bushing make the caster wheels rolling smoother and quieter. Reduced friction allows for a longer lifespan of the caster wheels. Heavy Duty Industrial Swivel Caster integrates beautiful, practical, safe and other elements is a choice you should not miss. Wheel material: Bright Zinc Plated Steel and Polyurethane wheel. Wheel diameter: 5 inches Wheel width: 2 inches Caster Top Plate: 4-1/2x4 Overall Height: 6-1/2 Load capacity: 3200LB Wheel color: Red Number of Casters: 0 Caster Form: Brakes