Specification:Name: Sprockets Chain GearType: 04CMaterial: 304 Stainless SteelSurface Treatment: UntreatedPitch: 6.35mmTeeth Number: 24 TeethRound Bore: 8/10/12/14/15mmKeyway Bore:14mm (keyway 5x2.3)15mm (keyway 5x2.3)16mm (keyway 5x2.3)17mm (keyway 5x2.3)Application:For use with roller chainsNote:Due to diverse production batches, the dimensions (such as steps, whole height, top wire, etc.) may range slightly, please refer to the particular product.Package :Packing : Plastic bag / Carton box.Quantity : According for your Choose!