A real bargain for you: This one is strong and sturdy. Manganese raceway and Dust proof ring are not something you'll see everyday. This one will last very long at minimum maintenance effort. The wheel is soft and protected by 2 covers.
A rare water resistant caster, ideal for hospital, seafood industry and laboratory. The body frame is made of thick plastic with stainless steel moving parts. The TPR wheel with a precision bearing inside can roll smooth and noiseless.