HARKEN 75mm Quadruple Carbo Block - Swivel, 2677 Deck Organizers_2 Sheave Deck Organizers An innovative sliding mechanism controls

An innovative sliding mechanism controls the shackle post swivel

and compact

The free-rolling Delrin® ball bearings

The T2™ Loop requires no knots

HARKEN 75mm Quadruple Carbo Block - Swivel, 2677 Deck Organizers_2 Sheave Deck Organizers An innovative sliding mechanism controlsHarken 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