Bulk Aluminium Sliding Window Roller Assembly Anti Derailment OEM Product Attributes Attribute Value Material Aluminum Load capacity 50kg Wheel Color Any color Style Modern design Type Sliding Door And Window Rollers Function Quiet operation Product Advantages Low Maintenance - Self-lubricating bearings reduce upkeep Shock Absorption - Reduces stress on door tracks Noise Reduction - Nylon-coated wheels for silent operation Specifications Item Name Sliding Roller Fittings