HARKEN 75mm Quadruple Carbo Block - Swivel, 2677 Technology_Windproof The cheek block or footblock

The cheek block or footblock version of these popular blocks features a solid aluminum base to protect the sheave and bearing from possible sealant egress and an aluminum cheek for additional durability and strength

Economy shackles for use where you don't need them to swivel

Wire blocks are low friction designed to carry wire halyards and control lines

and other control lines from the mast base

HARKEN 75mm Quadruple Carbo Block - Swivel, 2677 Technology_Windproof The cheek block or footblockHarken 75mm Carbo Air Quad Block allows either a high load purchase of 5: 1 to 6: 1. Low friction Carbo AirBlocks are lightweight, strong, reliable, and economical. Consistently 30% lighter and 60% stronger than equivalent Classic blocks. The sideplates are UV stabilized, high strength resin and designed for small diameter lines favored by racers. Good for jib and mainsheet systems on high performance dinghies, and for high load control lines on small