Harken
57 mm Ratchamatic Flip-Flop Block Sheave dia. (in): 2 1/4 Sheave dia. (mm): 57 Width (in): 2 Width (mm): 50 Length (in): 4 5/16 Length (mm): 110 Height (in): 2 5/8 Height (mm): 67 Max. line dia. (in): 3/8 Max. line dia. (mm): 10 We