What you will receive
The Green europium based phosphorescent (glow in the dark) necklace, is the first ever Europium phosphorescent necklace. 
A unique high quality necklace that is sure to impress.
•The necklace is made from a strong silk/velvet material with a easy to use adjustable clasp. As seen in pictures 
•The length is 22 inches or 55.9cm, unisex.
The facts
•Produces a truly warm and beautiful glow. 
•Great chemistry gift 
•Amazing science gift 
Sweet Stocking stuffer, Christmas gift
•Europium powder can be recharged indefinitely just by holding it under bright light. (with the exception of extremes) Unlike other glow in the darks. 30 hours of glow time after being fully charged. Place on window seal for 45mins during the sunniest part of the day for 30 hours of glow time! (With a reduction in lumens over the course of the 30hrs)
•It is a difficult and expensive glow material to make due to the high cost of the exotic chemicals
•Based on the Rare-Earth element Europium. 

•This sample is great for fun science and Collections 
•This Phosphorescent material is at the cutting edge of chemical phosphorescent technology. 
•This is not a cheap weak Chinese glow powder that will not glow a week from now. 

DISCLAIMER ABOUT PICTURES 
•The pictures here do NOT do the glow justice, for the camera can not pick up all the light like our eyes can. 


Safety and toxicity 
•Non toxic 
•Non radioactive 
•Though it is not considerate a toxin do not ingest or inhale or the powder, If vial is broken. 

Shipping 
I offer fast free shipping to the U.S
International is additional