Feature:*Dual bearings for gentle rotation: The idler wheel is provided with two small ball bearings to ensure delicate rotation and decrease friction.*High high quality galvanized steel:Made from and corrosion-resistant galvanized steel, these pulleys are built to last. Burr-free protects the rope and your hands.*Multifunctional design:These pulleys have small pulley diameters of 30mm, 50mm, 60mm, 80mm, 95mm and a maximum groove width of 15mm, appropriate for ropes from 1-8mm. They have a maximum load of 200kg and a safe load of 50kg.*Multiple uses:These pulleys are large for steering ropes, lifting objects, operating winches, or even gentle sliding doors. Their versatility makes them a beneficial addition to any tool kit.*Multiple Size Pulleys: five sizes of pulleys are available, providing sufficient solutions for your diversified tasks and needs.Specification:Product name: Heavy obligation tune pulleyProduct material: steelScope of application: used for sliding doors, door and casement tracks, track equipment accessories, etc.Product type: V typeFrame thickness: 2.5mmPulley diameter: 30mm, 50mm, 60mm, 80mm, 95mmApplicable rope: 1-8 mmSafe load: 50kgMaximum load: 200kgPacking list:1*PulleyNote:1. The genuine colour of the thing may be barely diverse from the pictures proven on web content caused by many points comparable to brightness of your computer screen and light-weight brightness.2. Please allow slight handbook size deviation for the data.