The Harken 2658 40mm Fiddle Block with swivel, becket and cam cleat is part of Harken’s low-friction Carbo Air range. These compact blocks are lightweight, strong, reliable and affordable, with high working loads for safe, easy trimming. The Carbo Air range complements Harken’s Black Magic® line.

This 40mm fiddle block is an excellent choice for 3:1 and 4:1 tackles on dinghy vangs and mainsheets, as well as controls such as cunninghams and internal boom outhauls on larger boats.