Hello! Good luck with your toilet training. Are you referring to precautions about your kittens falling into the toilet? Well, I didn’t use any commercial product out on the market to train my cat. I was concerned about him falling through what I believe is perforated paper in the Citti Kitty (correct me if I’m wrong) so we trained him with as big of a metal mixing bowl that we could fit inside the toilet, while gradually decreasing the amount of litter and adding more water each step of the way. To be honest, we got tired of the disgusting mush that came from water mixing with litter, so we kind of did away with the litter after we saw that he knew where to “go” a few times and just filled the bowl up with water.