Aluminum Door And Window Accessories Single V Groove Nylon Pulley Wheel Sliding Plastic Door Roller Heavy-duty 50KGS capacity nylon plastic housing roller with 608zz carbon steel bearing for smooth sliding window and door operation. Key Features Material: High-strength nylon plastic housing with durable nylon wheel Bearing: carbon steel (corrosion-resistant) Smooth, quiet operation with low friction Easy screw-fix installation 50kg load capacity per roller Technical
