I love the one by Munchkin that I have. It fits right on the commode and has handles that the child can hold. However, I only used it to get him used to the idea of sitting on the big potty seat which was for around a year when we used to go every morning and before sleeping at night. Eventually, when I started the real training, we stopped using it. I don’t like the ones that sit on the floor they seem like an extra step before the child comes to the real potty seat and they are also a hassle to clean. However, some people love them.