It isnt really about what material they are made out of, or how thick they are. This is about the redges in the botom. These ridges make it easier for them to get their teeth started into the plastic. I personally don't think I would buy them, without preparing to fabricate something to the bottom. (Freakie_frog, do you have any issues with cleaning the tubs with the extra stuff in the bottom?) I use the simple mortar tubs from Menards. They have no ridges. I have still had a chew out. The mom chewed, and the baby got out.... since she has gone, there have been no more problems.
Reply With Quote