<b>Buy the bowls with the blue stuff. "Why?" you ask. </b><br>Because it's not just pretty, that blue ring you see in the images is actually <b>silicone</b>, and let me tell you a little about silicone - <br><br>Silicone is manufactured from<b> pure and natural silica</b>, yes, thats right, sand. And what makes silicone so special for food grade feeding dishes is that <b>silicone is used instead of rubber to keep the no tip bowls in place</b>. Rubber is a petro-chemical product, so not only does it have an un-appetizing scent of petroleum, but it also wears out five times faster than does silicone.<b> I also designed these bowls with the silicone ring to be easily removable</b>. The reason for this is that while bonded silicone may seem convenient, the reality is that in <b>between the bonding and the stainless steel there are grooves which trap food particles</b>. This is not good, and when its around the food our pets eat, its even worse and can lead to many terrible diseases. <b><br>Being able to remove the silicone ring and to dishwasher clean the feeding dishes is best for your pet</b>, and for you to have lower vet bills.<br> <br><b>So again, choose the bowls with the blue stuff, you (and your pet), will be glad you did :)</b> <br><br><b>♥ Features ♥</b><br>      ∗ Top diameter - 7.5 inches <br>      ∗ Bottom diameter - 10 inches <br>      ∗ Height - 2.3 inches <br>     ∗ Inside depth 1.9<br> <br>✔ Very Easy To Clean (Dishwasher Safe) <br>✔ Rust Resistant <br> <br>