Harken 57mm Carbo Ratchet Single Block with Swivel Head Red Sheave Shipping_Carrier Sheave 75 mm Length 159

Sheave 75 mm Length  159 mm Weight  772 g Shackle Pin  8 mm Maximum Line  14 mm  Maximum Working Load  1650 kg Breaking Load  4535 kg

Fly blocks are perfect for use on foiling dinghies and sportboats and for vang cascades and backstay systems on Grand-Prix racers

Sheave 40 mm Length  110 mm Weight  235 g Shackle Pin  5 mm Maximum Line  6 mm  Maximum Working Load  408 kg Breaking Load  816 kg Footnote: Maximum working loads and breaking loads for blocks based on cam strengths

the shoes have an adjustable strap for a secure fit so that you can sail comfortably all day

Harken 57mm Carbo Ratchet Single Block with Swivel Head Red Sheave Shipping_Carrier Sheave 75 mm Length 159Same as the HK 2135, but comes with a red sheave. Carbo Ratchets allow sailors to hand hold loaded lines and offer balance between holding power and controlled easing. On off switch operates from both sides. Standard grip: medium light air; 10: 1 holding power Sheave 57 mm Length 103 mm Weight 85 g Shackle Pin 5 mm Maximum Line 10 mm Maximum Working Load 227 kg Breaking Load 907 kg Holding Power 10: 1