Shungite Round Buttons for Computers and Other Devices #3 measure approximately 1 7/8" (50mm) in diameter and weighs approximately 16.0 grams. There is adhesive on the back so that you can stick this button on the back of your computer, tablet, etc. The Shungite turns the EMFs, etc. that are emitted by your device from a negative energy field into a positive energy field. Type II Shungite. Please let me pick one for you. These are $11.00 USD.
(Healing Crystal, Grounding and Protection Crystal)
Hardness: 1.0 - 2.0
Origin: Kondopoga, Karelia, Russia