Please Note : Communication is the best way to solve problems. If you have any problems after purchase, please contact us in time before opening the return . We will give you a satisfying solution. Specification: Condition: New Contact Surface : Smooth/Backside Bearing Bore Inside Diameter : 0.67 inch (17 mm) Width : 1 inch (25.5 mm) Belt Type : V-Ribbed Mounting Hole Quantity : 3 Material : Thermoplastic Pulley Flanged : No Fit For: .