2pcs 3M Type 20T Timing Pulley 20 Teeth 4/5/6/6.35/7/8/10/12mm Inner Bore 3mm Pitch 11mm Belt Width Timing Belt Pulley
2pcs 3M Type 20T Timing Pulley 20 Teeth 4/5/6/6.35/7/8/10/12mm Inner Bore 3mm Pitch 11mm Belt Width Timing Belt Pulley