Heavy-duty 4-piece swivel caster wheels - Heavy-duty construction: These wheels are built for strength with a thick steel housing and a thick top plate. Each wheel assembly uses dual support bearings, delivering a load capacity of up to 59 kg for a set of 4 casters (15 kg per wheel). - Independent safety brake: The casters swivel 360 degrees and each wheel has its own brake that locks both the wheel and the steering mechanism. When engaged, the device is held firmly in place to prevent movement and reduce the risk of injury to others. - Smooth and mark-free rolling: Wheels are made from wear-resistant TPR material, which reduces vibration, operates quietly, and absorbs shocks.They provide a smooth, quiet rolling experience without leaving marks on a variety of floor types, including uneven surfaces. - Broad range of applications: Each pack includes 4 swivel caster wheels. They can be easily installed on carts and are suitable for DIY furniture wheels, workbenches, trolleys, cabinets, and other furniture to enable easy movement. Use scenarios - Workshop mobility: Mount these casters on a heavy tool cabinet or mobile workbench to reposition tools and equipment quickly and safely. - Home and office retrofit: Upgrade desks, cabinets, or storage units with casters to create flexible, mobile furniture that can be rearranged with ease. - DIY project carts: Create mobile carts or trolleys for parts, supplies, or project components to improve workflow and accessibility.