Garelick Flip Up Aluminum Dock Ladder Unique flip-up hinge mechanism; Innovative design flips up and out of the water to prevent marine growth; 10 degree angled design for effortless boarding; Wide track 18" (46cm) ladder with full 16" (41cm) width steps; Quick release pins allow easy removal for seasonal storage of periods of non-use; Comfortable anodized aluminum traction tread with curved step surface; Anodized aluminum, heavy walled 1" (2.54cm) diameter tube construction; Stainless steel hardware for all-weather use; 300 lbs. (136.4 kilos) boarding weight; 4 step extends 52.75" from deck or stands 59.75" above when flipped up; 5 step extends 64.75" from deck or stands 71.75" above when flipped up; Installation Instructions