The first time I used it, I positioned all three legs to the same height. But the easel and painting were at risk of falling over! Then I realized the back leg has to be shorter. Maybe a penetrating glimpse into the obvious for others, but it wasn't apparent at first to me!! I love that it can fold down into the case for portability and storage. My other wood easel (cheap) just took up too much space and wobbled too much when painting.