Item Type: Synchronous Wheel_x000D_ Size: _x000D_ 60 Tooth: Width: Approx. 6mm / 0.2in, Hole Diameter: Approx. 6.35mm / 0.3in_x000D_ 20 Teeth: Width: 6mm / 0.2in, Hole Diameter: Approx. 6.35mm / 0.3in_x000D_ Rubber Closed Loop Belt: Length: Approx. 200mm / 7.9in, Width: Approx. 6mm / 0.2in 1This timing pulley is suitable for timing belts with a width of 6mm 2Made of high-quality aluminum, strong and durable, surface oxidation treatment, anti-rust and anti-corrosion 3Very useful in high speed drives that need to improve belt winding capacity 4Widely used in 3D printers, milling machines, CNC engine lathes, gear forming machines, gear hobbing machines, drilling machines or other mechanical transmission occasion 5Synchronous wheel come with stable structure and excellent performance and long service life 1 x 60 Tooth Synchronous Pulley 1 x 20 Tooth Synchronous Pulley 1 x Rubber Closed Loop Belt 1 x Wrench