We recently bought this brand of toilet topper for our 3yo. It's light and easy to position for her to do it herself. But do note that it fits better on a more rounded toilet seat than an oblong shaped seat. Luckily we had two bathrooms with different styles, so we could use it on the one. Another thoughtful feature are the handles, which help provide stability for the child as well as what you hold on to while taking it on/off. It also has a small hook of you want to hang it on the wall, instead of just propping it on the floor. All in all, it fulfills its duty (no pun intended)!