40mm Twing Block

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 sheetSpring biased to open when unlatched - One-handed operationRoller at pivot base - Use 1:1 or 2:1 up-down controlCarbo Air block construction - High strength for durability and lightweight for maximum float in light airUses:Dinghies, sport boats, and small keelboatsSpinnaker sheet and guy controlCode zero sheet up-down controlSpecifications:Sheave Ø mm: 40 mmSheave Ø in: 1-9/16 inLength mm: 89 mmLength in: 3-1/2 inWeight g: 86 gWeight oz: 3 ozMaximum line Ø mm: 12 mmMaximum line Ø in: 3/8 inMaximum working load kg: 275 kgMaximum working load lb: 606 lbBreaking load kg: 825 kgBreaking load lb: 1818 lb