Double Ball Bearings This feature allows greater load capacity, making the whole set of casters heavy duty up to 600 Lbs in total with all 4 of wheels. Suitable for most house furnitures.
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Dual Locking Design When in locked position, the swivel also locks. Double brakes caster wheels are more stable than single locking ones. All 4 casters with brakes.
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Non-Marking Polyurethane Rubber Wheel with such kind of material rolls smoother and quieter than other hard rubber. Tests show that it helps protect floors and the caster itself has a longer lifespan.
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