Stable and Safe: Maximum Load 600 lbs Sturdy construction, bottom reinforced with non-slip grips Extra Large Size: 19" Length x 14.5" Width. Large enough to turn around on with stability if you need Adjustable Height: Height Scale Adjustable from 7-5/8 inch to 9 inch, 4 positions height for uneven ground Clever Design: Easy fold away and lock design;Convenient for both storage and carrying; It has grip tape on the top and reflective tape on the sides plus a handle you can use to carry it Widely Used: This adjustable height step stools is highly recommended for a vehicle, RV, travel trailer, high SUV, van; also can be in uneven ground such as desert, beach, boat