1PCS 20T-60T 0.5M Aluminum Alloy Spur Gear 0.5 Mod Motor Gear with Step 20 22 24 25 28 30 32 35 40 50 60 Teeth Bore 4-12mmHome Improvement > Hardware$3.14 (≈ DKK 20.92)$4.08In stockSold by AliExpress WWTo Store