Bathroom Sliding Glass Door Hanging Roller High Carbon Steel Bearing Nylon Round Shape Pulley Wheel Stainless Steel Door Rollers High-quality shower door hanging rollers featuring high carbon steel bearings with nylon wheels, designed for durability and smooth operation in demanding environments. Product Attributes Attribute Value Material High carbon steel bearing + nylon Load capacity 25kg per roller Corrosion Resistance Saltwater-resistant Lifespan 20000+ cycles Style