BlueSnail blue Step Stool Ladder is made of PP, it’s very sturdy ,this potty training seat is ideally for children from 18 months to 7 years, including toddler, up to 110 lbs in weight. It’s easy to clean and easy to store in the bathroom, Anti-Slip Pads Ladder design can make the product more safer than other product, The assembly method is also very simple,just use 3 step you will get a great a training toilet,kids also can assembly it by themselves for watching Installation video.Boys and girls ,avery one can use it. It can increase the child's confidence and courage. it is perfect for families to train your child !