Protect your floor-Polyurethane (PU) is a kind of wear-resistant and temperature-resistant elastic material. The tread with a special coating can protect the floor from scratches and other damages that can be caused by traditional casters. mat Easy to install, whether the wheel is threaded rod or circlip type, as long as the rod length is between 23 mm and 26 mm and the piston diameter is 8 mm, you can use this stemless wheel. Line up the holes and press them in. Convenient - Our casters can be used to replace various broken, damaged or hard-to-use household appliances and furniture wheels, providing stability and excellent load-bearing capacity. Double Wheel Design - The universal double wheel allows a larger area in contact with the ground, which can promote the smooth movement of equipment without traces, and it is more convenient to replace the casters. Field Application - These casters are very suitable for various DIY purposes, suitable for furniture, office swivel chairs, computer chairs, small equipment, swivel chairs, swivel chair accessories, etc.