COJOY Soft Food-Grade Silicone Chocking Interactive Fun Slow Pet Feeder Cat Dog Feeding Bowl Anti-gulping Bloat Stop L Materials: food-grade silicone, Dishwasher safe ,Soft and flexible silicone protecting your pet's retina or nose from hurt Prolongs eating time, Turns your pets meal into a challenging game, Reduces the risk of vomiting and gas Product flexibility is very strong, no matter how you knead , it won't be deformation Unique design of the bottom, good stick to the ground. The pillars of products with different sizes, when food in, only the cat /dog hyperactivity tongue, to eat more food, and to better train the flexibility of the tongue.