2600: 57mm Carbo Description: Single/Swivel/Becket Sheave dia.(in): 2.25 (57mm)Length (in) : 4 3/16 (132mm)Max. line dia.: 10mmMax. working load: 792 lbs (360kg)Breaking load : 2380 lbs (1080kg)HARKEN homepage: www.harken.com