Heavy Duty Flat Bottom Swivel Casters: The heavy duty caster wheels can be rotated 360 degrees. To change direction flexibly, smoothly, quietly and powerfully. When the brake is applied, the mounting plate and wheels are locked at the same time Sturdy Design: Our flat bottom brake casters are made of heavy duty steel. Polyurethane casters provide the elasticity of rubber wheels with the elasticity and durability of metal wheels. This extremely hard structure is robust and durable. The load capacity of the heavy duty castors is 300 kg (75 kg per wheel) Scope of application: These furniture casters with brakes are very suitable for various interior and industrial decoration applications. Can be used in homes, schools, garages, shops, carts and hospitals. Furniture and other small movable furniture can be used for almost any furniture. Heavy-duty wheels are dirt and corrosion resistant. Suitable for floors: such as carpet, laminate, parquet, wood, cork, tiles, granite, paving, lawns, etc. These furniture casters have durable and flexible polyurethane rubber coatings that can easily glide on any floor. Very quiet and protects your floor scratches or scratches. Safe and Secure: Our steering wheel has a built-in lock that can be easily adjusted and unlocked. The double locking function guarantees you full control of the furniture and a firm hold Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store