This jammer block is for situations where a fixed foot block cant help: peeling spinnakers, or changing a sheet winch
Controlled spinnaker handling
Attached with webbing strop, positioned on a toe rail or padeye
No drilling and no clutter on deck
Plain bearing sheave provides smooth running at low loads
Excellent durability at high loads
Strop allows fullest rotation for spinnaker sheet use
CAM has three distinct operating modes