This little guy is amazing! I want about 20 more to keep all over my house. I love glass items. I love how slick and smooth they feel. They glide in with ease and hold temperatures fantastically. But not only is it glass, it glows in the dark! It makes the fun in the dark that much more exciting. Its glow also helps you not lose it in the bedroom too. The size is great and not intimidating. It’s not only functional, but also just a pretty piece to add to your collection. It makes a good nightlight too!