Harken Block

Carbo Ratchets allow sailors to hand-hold loaded lines and
offer balance between holding power and controlled easing.
Nylon resin sideplates are densely packed with long-glass
fibers for a compact block with a high strength-to-weight
ratio. Machined aluminum sheaves are Hardkote anodized
for strength and corrosion resistance. Eight facets hold
line securely. Ball bearings, sheave, and sideplates are
UV-stabilized with carbon black for maximum protection.
The 57 mm switchable ratchets provide
precise on/off control with accessible, easy-to-operate
on/off switches on both sides of the block.
Sheave 57mm
Weight 85grms