Check the listing for details. 6Pcs #40 Chain Master Connector Link Roller 1/2" Pitch Steel. Condition: New. Listed at 17.63 USD. General Information：[1]Note: Please pay attention to the size and model before ordering.[2]Material: Made of stainless steel materials, finely processing, precision processing, strong, anti-oxidation, and durable.[3]Appliance: This chain link roller connector is Easy for drive chains. Regular cleaning and lubrication can extend service life.[4]How to Use: 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.[5]Specifications: Chain No.: 08A(#40); Material: Stainless Steel; Total Length: 23mm / 0.91-inch; Pin Length: 18.5mm / 0.73-inch; Pin Diameter: 4mm / 0.16-inch; Inner Plate Depth: 12mm / 0.47-inch; Pitch: 1/2-inch / 12.7mm; Width Between Inner Plates: 8.