Heavy Duty and Durable: These swivel casters are made from high-quality materials and are built to handle heavy loads and withstand demanding environments. They are designed to provide long-lasting durability and reliable performance.Smooth and Quiet Movement: The rubber wheels on these casters offer smooth and quiet movement, ensuring a hassle-free experience when maneuvering your equipment or furniture. The non-marking rubber also protects your floors from scratches or damage.M10 Threaded Stem: The casters feature an M10 threaded stem for easy installation. The threaded stem design provides a secure attachment to your workbenches, furniture, or other equipment, ensuring stability during use.Brake Function: Two of the casters in this set are equipped with brakes, allowing you to lock them in place when needed. The brake function provides increased safety and stability, preventing unwanted movement and ensuring your equipment stays securely in place.Versatile Applications: These swivel casters are suitable for a wide range of applications, including workbenches, furniture, carts, and other equipment. They offer convenient mobility and allow you to easily move and position your items while providing stability during use.