Item Description:Feature:2GT Timing Belt Pulley; Fit for Reprap, 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 . .Timing Belt 2GT60T20T-200 Specs:Type: 2GT60T20T-200200-2GT-6 Timing Belt:2GT Pitch: 2mmBelt Height: 1.52mmTooth Height: 0.76mmMaterial: RubberPitch Length: 200mmWidth: 6mmShape: Closed-loop 2GT timing belt2GT Belt Pulley Big:Tooth Number: 60Tooth Pitch: 2mmHole Diameter: 8mmFlange: DoubleTooth Width: 7mmMaterial: AluminiumFit for Width of Timing: 6mm2GT Belt Pulley Small:Tooth Number : 20Tooth Pitch : 2mmHole Diameter: 5mmFlange: DoubleTooth Width: 7mmMaterial :AluminiumFit for Width of Timing : 5mmPackage List:1Pc 20Teeth1Pc 60Teeth1Pc 200mm Closed timing belt2Pcs ToolsItem Specification:Type: TimingOrigin: CN(Origin)