HARKEN 57 mm Carbo Block - Swivel, Becket, 2601 Rigging Tools_Bosun Chair Use cam swivel bases when

Use cam swivel bases when leads must rotate to face the trimmer

It is ideal for mounting in the cockpit or for use on larger keelboats and small offshore boats that use 76 mm (3

An integral head spacer prevents Hard Lube-anodized aluminum side plates from deflecting and binding

When Harken sets out to create a block for sailors who have always believed they didn’t need Harken

HARKEN 57 mm Carbo Block - Swivel, Becket, 2601 Rigging Tools_Bosun Chair Use cam swivel bases whenThe Harken 57mm Carbo Air Single Block with Becket includes a swivel shackle and an integral becket. Low friction Carbo AirBlocks are lightweight, strong, reliableand 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