1pc 9 10 11 Teeth 04C 304 Stainless Steel Industrial Drive Sprocket Wheel Chain Gear 9T 10T 11T Bore 6mm 8mm 10mm Groove StepHome Improvement > Hardware4,15 USD (≈ 3,71 €)4,56 USDDisponibileSold by AliExpress WWVai al negozio