Shungite World 7 pcs Shungite Sticker for Cell Phone Case Tablet Laptop Computer - Round Dot Healing Energy Shungite Stones Protection Plate with Carbon Fullerenes (Polished, 20 mm / 0.78")

They are installed on the microwave oven the televisions and anything else that has EMF signals being emitted. After being used on a cell phone, I found that they could be removed and used again. Great adhesive properties.

Work great on cell phones! Thanks

So far it's stayed stuck into the back of my phone for over a year.

Not bad not the best! I guess it is all about the price. The adhesion as people mentioned is really bad and I have loosened some of the stones due to the lack of adhesion. I will suggest using some type of tape or glue

I’m a research junky. I bought these to protect my kids and me. I put them on our phones, lap tops and iPads. They are easy to apply and small in size. They don’t create a distraction on your electronics. I hope they work!