Alice in Wonderland Tea Party Steampunk pocket watch glow drink me necklace pw1-Umbrella laboratory alice in wonderland tea party necklace Rare Handmade Tool for any crazy time traveler Necklace chain is roughly 30" long, diameter of the watch is roughly one inch and is battery operated .FREE GIFT BOX and extra battery Pendant/bottle is roughly 24mm high and is filled with magical glow in the dark powder. Any light will charge the powder. However, direct sunlight, high wattage bulbs, or black lights are needed to obtain the maximum glow. The glow will gradually fade until recharged. It can be recharged over and over.