Heavy Duty Flat Bottom Swivel Casters: The heavy duty caster wheels can rotate 360 degrees. To change direction in a flexible, smooth, silent and powerful way. When the brake is applied, the mounting plate and the wheels are locked at the same time Heavy duty 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 sturdy 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 ideal 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, tile, 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 from 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