We bought one of these for our malamute puppy over 8 yrs ago the rubber ring around the the outside edge has just recently become worn out and we had to remove it. The bowl looks like it will be good for another 20 yrs. Doesn't tip over and is deep enough that it allows her to chase her food around the inside of the bowl without any getting out of the bowl. We have purchased another for our 2nd puppy and will get a larger size when the new puppy gets bigger. Excellent buy.