GLOW rings are made from a mixture of Burl Wood, resin and phosphorus glow powder. I use burl wood for these rings, you can see the wood grain is beautiful, this ring is coated with epoxy resin so it is water resistant! The glow will remain visible for several hours after it's charged. Your ring will charge every time when it's exposed to any source of light, including daylight! ------------------ Estimated shipping times (May be faster or later than expected): North America: 10-15 business…