Harken 57mm Carbo Fiddle Block with Ratchet /150 Cam-Matic and Becket Sale_20plus you'll have superior optical clarity

you'll have superior optical clarity and glare-free vision

use the detachable shoulder strap

Also featured is the A0677 small allenite cam cleat

Maximum Overall Size 80 x 60 mm Size Of Hole In Boat 42 x 62 mm Method Of Mounting  Internal

Harken 57mm Carbo Fiddle Block with Ratchet /150 Cam-Matic and Becket Sale_20plus you'll have superior optical clarityCarbo Ratchets allow sailors to hand hold loaded lines and offer balance between holding power and controlled easing. Sheave 57 mm Length 143 mm Weight 303 g Shackle Pin 5 mm Maximum Line 10 mm Maximum Working Load 359 kg Breaking Load 1080 kg Holding Power 10: 1 Footnote: Maximum working loads and breaking loads for blocks based on cam strengths.