• HTD 5M Timing Belt Pulley 15mm Width 405mm Belt 60 Teeth 20Teeth 3:1 Ratio Synachronous Pulley 5mm 6mm 8mm 10mm 12mm 14mm 15mm 16mm 19mm 20mm 22mm 24mm 25mm Transmission Pulley (60T-12mm, 20T-8mm) KWD 17.500
• Worm Gear Set 1.5M-20T 20:1 Ratio 1.5 Mod Carbon Steel Rod Shaft 20Teeth Brass Gear Wheel Reduce Transmission Part (Rod-15mm Bore, Gear-15mm) KWD 9
• Brass Worm Gear Set - 0.5 Modulus 20T 20:1 Reduction Rate 3mm 4mm Hole Diameter Right Rotation Drive Gear Box Wheel Shaft Kit (Rod-3mm bore, Gear-4mm bore) KWD 7