Material:Stainless Steel & Black Rubber Ring Feature:Perfect for dogs, cats, and other pets.A rubber ring around the base helps the bowl "grip" the floor so your pet cannot push it around and cause damage/scratching/spills.This dish also features sloped exterior sidewalls to help prevent your pet from tipping the dish over. Note:They are made of Stainless Steel,pls not very good Stainless Steel,pls note that before u buy,thanks Size:Outer dia.22cm x 6cm high,Inner dia.14.5cm x 4.5cm depth