The KASBAH Dog Slow Feeder Bowl, Puzzle Bowl for Large Dogs, Anti-Choke Large Dog Bowl Anti-Gulping Slow Food Feeding Dishes Interactive Bloat Stop Dog Bowls, Black is perfect to slow down large breed dogs that wolf down their food, which can cause indigestion and a host of other related issues. Since I started feeding my Great Dane mix with this bowl, she has WAY less gas than before, and she isn't as sluggish after she eats either, which I now realize was probably cause by her having an upset stomach. Dog's aren't designed to eat dry commercial dog food. Their natural species appropriate diet is raw meat, organs, bones, and a few grains. Most of which are WET, not dry and compact. Their digestive systems work MUCH faster than ours, and is designed to move and digest their food very quickly. You can actually kill a dog who hasn't eaten in awhile by feeding it a bunch of dry dog food, because it bloats up their stomach and expands instead of being able to be properly and quickly broken down and digested. If you're dead set on feeding your dog dry commercial dog food, you need to make sure they eat it as slowly as possible to prevent serious health risks that could potentially be deadly. The KASBAH slow feed is NG dog bowl work exactly as it says it will, and for a great price, which is next to impossible to find anything made for large or giant breed dogs for less than double or triple the cost of the same item made for small breeds. If you have a large breed dog who eats all his/her food in less than 3 minutes, do yourself and your dog a favor and get this bowl. It may actually help them live longer, and will definitely promote better health.