The Edge by Expedite Dog Ladder is still the most versatile and easy-to-use dog ladder available. Edge brings you one of the easiest dog ladders for your dog to climb. Get your dog back into the boat with ease. Non-slip powder coated finish. Lightweight aluminum that folds up for easy storage. Hook arms are adjustable from 17 inches to 21 inches depending upon boat draft. Total length is 31inches and width of inner hook is 4.75 inches. Total width of the ladder is 11.75 inches.