Harken 40mm Carbo Air Fiddle Block w/Swivel

The Harken 40mm Carbo Air Fiddle Block with Swivel is a lightweight, strong, and reliable low-friction block designed for smooth and efficient trimming. A compact companion to the Harken Black Magic line, it offers high working loads and exceptional durability. The 40 mm fiddle configuration makes it an excellent choice for 3:1 and 4:1 tackles on dinghy vangs and mainsheets, as well as control systems such as cunninghams and internal boom outhauls on larger boats. With a 40 mm (1-9/16 in) sheave, 115 mm (4-1/2 in) length, and a weight of 51 g (1.8 oz), it accommodates lines up to 10 mm (3/8 in) and supports a maximum working load of 220 kg (485 lb), with a breaking load of 735 kg (1620 lb).