Most slow feeders are frustrating-tiny grooves for pretty designs for humans. Annoying suction cups that don’t work and invite my dog to chew the silicone suction cup(s) off. This is actually designed for dogs instead of people. Heavy duty, perfect tight fit in their bowl so my dog doesn’t turn it into a chew toy. When she grabs it, the bowl comes with it and both are heavy. Nothing too tiny for her tongue and deep enough her food goes into it instead of sitting on top of it. Make sure you rinse food off ASAP bc it’s harder to clean if food dries on it but probably fine if you have a dishwasher. Highly recommend the bowl to go with it for the perfect fit.