Heavy-Duty Flat-Bottom Swivel Casters: The wheels on these heavy-duty casters rotate 360 degrees. This allows for flexible, smooth, quiet, and powerful changes of direction. When braking, the mounting plate and wheel lock simultaneously. Heavy-Duty Design: Our flat-bottom brake casters are made of heavy-duty steel. Polyurethane casters offer the resilience of rubber wheels with the elasticity and durability of metal wheels. This extremely rigid construction is sturdy and durable. The heavy-duty casters have a load capacity of 160 kg (40 kg per wheel). Suitable for: These furniture casters with brakes are ideal for a variety of indoor and industrial applications. They can be used in homes, schools, garages, shops, on carts, and in hospitals. They can be used on almost any piece of furniture, including furniture and other small mobile items. The sturdy and durable wheels are stain-resistant and corrosion-resistant. They are suitable for carpet, laminate, parquet, wood, cork, tile, granite, paving stones, lawn, and other flooring types. These furniture casters feature a durable, soft polyurethane rubber exterior that glides effortlessly on a variety of flooring types. They operate quietly and protect floors from scratches or scuffs. Safe and Reliable: Our casters feature built-in locks for easy adjustment and unlocking. The double locking feature ensures complete control and secure support for your furniture. Quantity shipped: 4; Dimensions: Width 50 mm (see image for exact dimensions). Please contact us for details.