The Prime Climb Mast Ladder
from SJS Custom Marine Products

For centuries, sailors have relied on crew or friends to get aloft in a bosun's chair.  Today's mast ladders use similar methods to go to the top of the mast.

SJS Custom Marine Products, Inc. has developed a mast ladder system which provides easy access to the top of the mast without the use of halyards, blocks or winches.  More..