Used to minimise friction in lines passing through the deck or exiting masts and booms. These low profile, light weight, blocks are incredibly strong.

Captive lock, swivel, loop & shackle heads.
Ringless keyhole becket pins, quick adjusting clear angles.
Sheave diameter: 1 3/16".
Max line 5/16"
MWL 660,
BL 1650

Price: $16.30