GT2 Timing Pulley 16/20 Tooth Bore 5mm 8mm Width 6mm 7075 Aluminium Gear Teeth Wheel $3.57 5PCS / 20T W6 B8 with T - $3.57 5PCS / 20T W6 B5 with T - $3.57 5PCS / 16T W6 B5 with T - $3.57 Quantity 5PCS Size 20T W6 B8 with T 20T W6 B5 with T 16T W6 B5 with T 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 5PCS GT2 Timing Pulley 16/20 Tooth Bore 5mm 8mm Width 6mm 7075 Aluminium Gear Teeth Wheel High Quality 3D Printer PartsMaterial: High Quality 7075 Aviation aluminiumColor:BlackPackage include: 5pcs pulley and an Allen Wrench(gift)