DROK GT2/2GT Timing Belt System 5pcs 20-tooth, Width 6mm, Bore 8mm, Aluminum Timing Belt Pulley and 10 Meters Rubber Timing Belt with Allen Wrench Fit for RepRap 3D Printer Prusa i3 MendelMax Timing belt pullet: Tooth: 16T; Bore: 8mm; Belt Width: 6mm. Timing belt: Length: 10 meters (32.9feet); Width: 6mm. GT2/2GT timing belt system is designed for linear motion and precision,high positioning accuracy. Adopt high quality aluminum and rubber, rust-proof, good toughness and long life. Package includes: 5 x GT2 Timing Belt Pulley; 1 x Allen Wrench; 1  10 Meters GT2/2GT Timing Belt.