Feature: 1. DURABLE STAINLESS STEEL: Sliding door window pulley is made of stainless steel material, rust proof and durable with long life 2. NOISELESS PP WHEEL: Come with PP material roller, slide freely without jamming, smooth and noiseless, you can use with confidence 3. WIDE APPLICATION: Pulley roller is widely used in sliding doors, window, cabinets, etc., provide great convenience for your life 4. 10PCS IN TOTAL: The package contain a total of 10pcs, enough for you to replace and use, very convenient 5. FINE CRAFTSMANSHIP: Using advanced technology with excellent craftsmanship to bring smooth surface, which will not hurt your hands in work Specification: Item Type: Sliding Door Window Pulley Material: PP, stainless steel Wheel Outer Diameter: Approx. 12mm / 0.47in Base Length: Approx. 53mm / 2.09in Base Width: Approx. 16mm / 0.63in Installation Hole Diameter: Approx. 5mm / 0.2in Package List: 10 x Sliding Door Window Pulley Note: Please match the appropriate size before use.