Harken 40mm Twing Block [2699]

40mm Twing BlockLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.Features: Opening side plate - Easy to rig and remove from sheet Spring biased to open when unlatched - One-handed operation Roller at pivot base - Use 1:1 or 2:1 up-down control Carbo Air® block construction - High strength for durability and lightweight for maximum float in light air Uses: Dinghies, sport boats, and small keelboats Spinnaker sheet and guy control Code zero sheet up-down control Specifications: Sheave Ø (mm): 40 mm Sheave Ø (in): 1-9/16 in Length (mm): 89 mm Length (in): 3-1/2 in Weight (g): 86 g Weight (oz): 3 oz Maximum line Ø (mm): 12 mm Maximum line Ø (in): 3/8 in Maximum working load (kg): 275 kg Maximum working load (lb): 606 lb Breaking load (kg): 825 kg Breaking load (lb): 1818 lb Owner's Manual (pdf)