This 2-in-1 slow feeder bowl insert set includes two adjustable designs (a circular insert for beginners and a multi-grid insert promoting slower eating for more experienced dogs). Made from soft, food-grade silicone, the slow feeding insert fits inside most regular dogs bowls and is gentle on your dog’s nose and tongue, as well as being safer than hard plastic alternatives (trimmable to fit 4.7″-7″ diameter bowls). Works with both dry and wet food for versatile use with a smooth surface resisting residue that in easy to rinse under water or place in a dishwasher. The strong suction cups work on ceramic, stainless steel and glass food bowls, securely locking in place to keep your dog focused on mealtime.