Specification Brand : LBTODH BulletPoint1 : Package included: 2pcs 420 Offset Link. BulletPoint2 : Material: Made of high-quality 45Mn Steel, durable to use. BulletPoint3 : Feature: They are pretested to support and maintain the expected load the chain will see when in use. BulletPoint4 : Installation: Easy to attach to the chain. BulletPoint5 : Application: Support and maintain the expected load, and helps align the chain parts which will minimize the initial elongation, then increase the life of the chain. ExternallyAssignedProductIdentifier1 : 0784136504938 ExternallyAssignedProductIdentifier2 : 784136504938 ItemName : LBTODH 2 Pcs Roller Chain Offset Link Half Link Crank Link ItemPackageDimensions_Height : 11.9126 centimeters ItemPackageDimensions_Length : 1.6002 centimeters ItemPackageDimensions_Width : 7.6962 centimeters ItemTypeKeyword : roller-chains Manufacturer : LBTODH Material : Steel NumberOfItems : 2 PartNumber : ROLLER-CHAIN-2 ProductDescription : Product Name: 420 Roller Chain Offset Link Material: 45Mn Steel Average Tensile Strength: 1250 lbs Plate Depth: 0.354 Inch Pitch Size: 0.375 Inch Pin Diameter: 0.141 Inch Pin Length L Max: 0.488 Inch Pin Length Lc Max: 0.519 Inch Plate Thickness: 0.051 Inch Roller Diameter: 0.200 Inch Width Between Inner Plates: 0.188 Inch