Features Sturdy and Durable: The pulley is made of stainless steel and nylon, which is not easily bent, stable and does not fall off, and is durable. Easy Installation: The nylon pulley is easy to install and use, slides smoothly without jams and does not make a lot of noise. Wide Application: This nylon pulley is widely used in sliding doors, sliding windows, cabinets, etc. This pulley can replace damaged pulleys and is highly practical. Long Term Use: This nylon pulley uses gravity and skating to hang items to reduce the load and can be used indoors or outdoors for long periods of time. Small and Lightweight: This nylon pulley is very smooth, small and light, and with 10 in a set, which easily meets your multiple installation needs. Specification: Item Type: Nylon Pulley Material: Nylon, Stainless steel Diameter: Approx. 19mm / 0.75in Thickness: Approx. 4.5mm / 0.18in Hole Diameter: Approx. 6mm / 0.24in, 4mm / 0.16in Total Length: Approx. 44mm / 1.73in Width: Approx. 20mm / 0.79in  Package List: 10 x Pulley Package List 10 x Pulley