1Pcs 10T-25T 08B Sprocket Wheel for Roller Chain 10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25 Tooth 304 Stainless Steel GearHome Improvement > Hardware8,23 USD (≈ 6,77 CHF)9,15 USDDisponibileSold by AliExpress WWVai al negozio