Provides all animals- dogs, cats, ferrets, as well as wild animals or critters- with a way out of their water entrapment. Made of strong, lightweight, blowmolded polyethylene that is chemical and uv resistant. Deck and assembly hardware included, except for deck screw and masonry anchor. Durable, strong, affordable, lightweight and elegantly simple. Easy to snap-together design. Safe for vinyl lined pools. Regular is 25" x 13" x 7". Large size is 40" x 13" x 7". Both can support up to 200 lbs.