●Works on A-frame fiber glass Ladders 4ft-8ft and some aluminum. ●<b>Will work on 10ft-12ft A-frame fiber glass ladders,and most older EXTENSION fiberglass ladders but must FORCE FITTED.</b> ●Can carry ladder horizontal OR vertical. Open handle for multiple position carrying ●Meets OSHA Ladder Safety Standards ●LARGER HANDLE SIZE FOR BIGGER HAND SIZES