Harken 57mm Carbo Ratchet Single Block with Swivel Head Shipping_Standard The long sleeve design is

The long sleeve design is ideal for dingy sailing offering coverage to protect against harmful UV rays

Shifting between ratchet and light-air modes is seamless

Sheave 40 mm Length  94 mm Weight  118 g Shackle Pin  5 mm Maximum Line  10 mm  Maximum Working Load  660 kg Breaking Load  1383 kg

5mm Fixing Hole Diameter 5mm Maximum Working Load 600kg Weight 484g

Harken 57mm Carbo Ratchet Single Block with Swivel Head Shipping_Standard The long sleeve design isCarbo 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