Harken 40mm Double Sheave Fishing Block

40mm Double Sheave Fishing BlockLow-friction Carbo Air blocks are lightweight, strong, and reliable. These compact blocks have very high working loads and smooth operation to simplify the positioning and retrieval of teaser lines. Specifications:Sheave (mm): 40 mmSheave (in): 1-9/16 inMaximum line (mm): 10 mmMaximum line (in): 3/8 inMaximum working load (kg): 220 kgMaximum working load (lb): 485 lbs