Shungite Disc 1.5cm

Shungite discs are believed to protect against EMF radiation emitted by modern electronic devices. As a result, they make for an ideal accessory for your smartphone. 

Peel off the backing of the Shungite disc and stick it to the back of your computer, TV, or any other electronic device you use frequently to safeguard yourself. These phone discs are approximately 1.5cm in diameter and come with double-sided tape on the back.
Shungite from Russia.