I get emails and calls asking, 'What is the difference between my product,The Purrfect Potty and the others? Is there a big difference? There is quite a big difference. Being that I designed this cat toilet training seat for easy training and also easy for the consumer to use. There are no complicated parts of the product to remove or difficulty in moving on or off of the toilet bowl without fear of spilling litter all over the floor. First, you can visually see the difference. The Purrfect Potty has a wide platform seat. This provides excellent stability for any size cat or if your cat has a strange stance or if your cat is disabled somehow, like a three legged cat. He will have no trouble using The Purrfect Potty. Second, the hole size NEVER changes!! That's right, no taking a chance on freaking your cat out by having the hole size get bigger! That is the main reason why cats fail to be toilet trained by the other two products. Third, you never have to clean up a huge mess while training your cat to use the toilet. The Purrfect Potty's litter bowl is designed to prevent a huge mess because it uses pellet or crystal type of litter and those are less messy. When I say it is SO EASY to train your cat by using the BEST cat toilet seat, The Purrfect Potty, I really mean it! What are you waiting for? Buy The Purrfect Potty today and find out for yourself!