Come and see our amazing products. The dog slow feeder bowl is made of Food-grade, High-Strength PP materials. And we choose silica gel to make the against-overflow mat which withstands heat up to 464 degrees F. 202 stainless steel bowls are also made of food-grade material. This pet bowl is featured with long-term use and good for your beloved pets. Double stainless steel dog bowls allow you to put food and water for your pets also feed two pets at the same time.If your fur friends needs to slow down eating, you can put the dog puzzle bowl on top of one of the stainless steel bowls. Pls confirm further with us if any query about packing info, inventory status and time schedule.