misting bowl unique changing color lights and misting . Very cool item I bought it as a unique humidifier to my bedroom because we heat with wood the air is very dry ... well clever idea but complete fail the lights drove me insane I could see the color changing on my eyelids. Kept me up all night. But I loved it and thought I would use it as a Halloween mood setting light for giving out candy well I live on a dark country road we get no trick or treaters . SO it has been sitting in my office for over 10 years now looking for a new home ... I think it would be an awesome addition to your Halloween festivities perhaps on your Halloween theme buffet table. You just add water about 4 cups of cool tap water direct from you faucet , plug it in , turn it on and let it do it's magical thing . This has been used maybe 9 hours for in the last 10 plus years I have owned it ..again just that one night and never again changing lights kept me up all night. Diameter is ~ 11.5" and depth in the middle about ~3". Ruler in pics. Frosted glass . I really love it but again if I have not used it in the last 10 years I am probably never going to use it . I paid 120 for this new , I do not have the box it came in. I can send you a video of it working. And I will plug it in when you buy it show you can see it work.