Tired of filling up and cleaning your pets water dish? This is a must have ... I didn't know existed! First I should mention I have a large dog about 80 lbs. I wasn't sure this would actually work for her because it is recommended for a cat or smaller dog. However this little machine is great. It is so nice not to have to fill up her water dish multiple times a day. This automatically dispenses clean water every 30 minutes. You can also push the button to activate sooner. The best feature is the UV cleaning light keeping the dish and water from getting gross. This Motion activated water dish is one of my favorite buys!