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. ♥Package Specification: 10 X Pulley, Diameter: Approx. 19mm/0.75in Thickness: Approx. 4.5mm/0.18in Aperture: Approx. 6mm/0.24in, 4mm/0.16in Overall Length: Approx. 44mm/1.73in Width: Approx. 20 Mm/0.79 Inches ♥Easy Installation: The Nylon Pulley Is Easy to Install And Use, Slides Smoothly without Jams And Does Not Make A Lot of Noise. ♥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