High-quality material: The 50mm furniture caster frame is made of high-quality metal zinc, the bottom is thickened, the structure is firm, the stability is strong, and it has a high load-bearing capacity of 50kg. Furniture casters with brakes are highly corrosion-resistant and can be used indoors and outdoors without hesitation. Flexible handling: The casters use a double ball bearing system, which can rotate 360° and flexibly change any direction and angle, saving time and effort when moving objects. Double brakes: 4 transport rollers, two with brakes and two without brakes, easy to adjust. When not in use, the brake positioning can be activated, locking the position and direction at the same time, ensuring safety and allowing you to easily control the movement and placement of furniture. Quiet operation: 50mm transport casters have a polyurethane rubber coating, which is strong and wear-resistant, soft and smooth, and moves quietly. Suitable for all floors: such as carpet, parquet,