Features:OOTDTY This pulley is made of bolstered nylon and high carbon metallic bearings, with stable load-bearing capacity.Size: Outer diameter=23mm/0.91inch, thickness=7mm/0.27inch, inside hole=5mm/0.20inch.Smooth operation and good mute-effect. When sliding the door, there is no noise and it slides smoothly.Suitable for most furniture hardware accessories, mobile door and window, glass sliding door and window, aluminum alloy door and window, shower room pulleys and drawers.ThePackage Includes:10pcs Pulley, which you need to use in lots of projects.Specifications:Material: High Carbon SteelSize: As Shown within the PicturePackage Includes:10pcs PulleyNote:Please enable 1-2cm mistakes due to handbook measurement, make sure that you don't intellect before you order. Due to the difference between various monitors, the picture won't replicate the actual colour of the item.