Factory Direct Modern Nylon Single Pulley for Horizontal Sliding Window Product Advantage: 1.Self-cleaning design - Prevents dirt buildup in tracks2.Thermal break technology - Reduces heat transfer in insulated windows3.UV-stable components - Won't degrade in sunlight exposure Specification: Item Name Factory Direct Modern Nylon Single Pulley for Horizontal Sliding Window Bearing Type Ball bearing Material nylon Thickness 1mm Service OEM & ODM Warranty 1 Year Feature Smooth,
