1Pcs 04C/05B/06B/10A/12A 9Tooth - 24Tooth Sprocket Wheel Industrial Chain Gear Pitch 6.35/8/9.525/12.7/15.875/19.05mm 45 SteelHome Improvement > Hardware1,88 USD (≈ 1,68 €)DisponibileSold by AliExpress WWVai al negozio