2GT 48T 50 Teeth Timing Pulley Bore 5-15mm Suitable for GT2 Transmission Gear 3-d Printer Parts Synchronization Bandwidth 6/10mmTeeth Number : 48T/50 TeethBore: 5/6/6.35/8/10/12/12.7/14/15mmPitch: 2mmFit for Belt Wide: 6/10mmMaterial : Aluminum alloyColor:SilverIf you would like 2GT pulleys with diversified numbers of teeth, diverse bores or widths, and varied shapes, please contact us, we will customise the specifications you're satisfied with!