Casters made of stainless steel for durability. Easy installation thanks to the threaded stem. Easy-to-use ball bearing wheels. Different sizes are available for different load capacities. Wet and corrosive environments are suitable for use. We are a Chinese manufacturer and supplier of Medical Casters and Central Locking Casters. Please visit: https://www.gogocasters.com/stainless-steel-casters.html read full review »