New Hand Blown Glass Glow-in-the-Dark Green Mushroom Shaped Paperweight measures 10cm tall by 7.6cm wide. This fantastic glass paperweight glows at night because glass blowers mixed phosphorus powder with the melted glass when it was formed and phosphorus naturally glows in the dark. No special display lights are needed to "charge" this great mushroom paperweight, just normal daylight inside your home is enough light for the phosphorus to absorb. Each fabulous paperweight is hand blown, each will vary just a bit from the picture shown however it will still be awesome! This makes your paperweight truly unique and one of a kind. This Hand Blown Glass Glow-In-The-Dark Green Mushroom Shaped Paperweight will delight and amaze you for years in your home or office.