40mm Carbo Air Fiddle Block with Swivel & Becket
Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming. The 40 mm fiddle is an excellent choice for 3:1 and 4:1 tackles on dinghy vangs and mainsheets, as well as for controls such as cunninghams and internal boom outhauls on larger boats.

Specifications:
Sheave: 40mm / 1-9/16in
Length: 131mm / 5-1/8in
Weight: 54g / 1.9oz
Shackle pin: 4mm / 5/32in
Maximum line: 10mm / 3/8in
Maximum working load: 220kg / 485lb
Breaking load: 735kg / 1620lb