All electronics emit radiation in various quantities, which can be extremely harmful to the body and mind. Shungite is said to block EMF radiation and is extremely powerful for grounding. Peal off the sticker on the back & place these on your cellphone, laptop, tablet, television, or any other electronic devise that you feel needs some extra protection. 
Some may contain small lines of pyrite inclusions. 
Dimensions: approx. 1.5"x1.1"
Cellphone pictured is an iPhone 6s (not included).
Please note that this is a natural product. Sometimes stones and crystals may have small imperfections and blemishes.
These suggested uses do not replace medical advise. Please always consult your doctor for any health related issues.