Product Information:Timing belt:2GT Pitch: 2mmBelt Height: 1.52mmTooth Height: 0.76mmMaterial: RubberPitch Length: 200mmWidth: 6mmShape: Closed-loop 2GT timing beltBig Timing Belt Pulley:Tooth Number: 60Tooth Pitch: 2mmHole Diameter: 5/6.35/8/12mmFlange: DoubleTooth Width: 7mmMaterial: AluminiumFit for Width of Timing: 6mmThe Small WheelTooth Number : 20Tooth Pitch : 2mmHole Diameter: 5/6/6.35/8mmFlange: DoubleTooth Width: 7mmMaterial :AluminiumFit for Width of Timing : 6mmProduct features✔Product Name: 2GT Timing Belt Pulley; Fit for , Prusa, MendelMax, 3D Printer;✔Circular arc Tooth Profile Tooth Space is Small, Suitable for Straight Line Driving ;✔GT2 pulley with 20 teeth or grooves is one of the best choices for 3d printer construction ;✔Compared with the T2.5 or MXL timing pulley, the GT2 pulley tooth profile is anti-backlash ;Package Listing Includes as Follow: * 60 Teeth 2GT Aluminum * 20 Teeth 2GT Aluminum4pcs * M4 Setscrews * Allen Key * 2GT-200-6 Cloesd-loop Timing Belt