This uniqe glowing moon necklace made with real heather, high quality environmental and safe glowing powder and resin. The pendant needs exposure under light or sun to glow. You have to charge pendant by holding it under the light (15 minutes under the sun; 30 minutes under the lamp) before you wear it in the dark. ITEM DETAILS Crystal length: approx.6 cm/2.4 in Chain length: approx.50 cm/20 in Please let me know if you need shorter or longer chain. COLOR: Colors may vary based upon your screen resolution and other computer settings outside of our control. The photo may differ from the actual product due to limitations of viewing photos at different resolutions, hue, brightness, contrast, and other screen variations. Other necklaces in my shop: https://ua4us.com/author/algizstudio More original designs can be found in my shop: https://ua4us.com/author/algizstudio For help on how to make a purchase: https://www.etsy.com/help/article/339