Check the listing for details. 6Pcs #80 Chain Offset Half Link Roller 1" Pitch Carbon Steel for 16A Chain. Condition: New. Listed at 19.38 USD. Features:1. Made of carbon steel materials, finely processing, precision processing, strong, anti-oxidation, and durable.2. This chain link roller connector is Easy for drive chains. Regular cleaning and lubrication can extend service life.3. You can use appropriately sized circlip pliers to take apart the old chain link roller and remove it from the chain. To install the new chain joint, insert the pin first, then snap the spring clip in. Wear gloves carefully for safety.4. Please pay attention to the size and model before ordering.Specifications:Chain No.: 16A(#80)Material: Carbon SteelTotal Length: 47mm / 1.85-inchRoller Diameter: 15.88mm / 0.63-inchPin Length: 34.9mm / 1.37-inchPin Diameter: 7.92mm / 0.31-inchInner Plate Depth: 24mm / 0.94-inchPitch: 1-inch / 25.4mmWidth Between Inner Plates: 15.75mm / 0.