More than ever we can benefit from shungite for EMF protection, as well as, WiFi. Here you can buy shungite tumbles in medium tumble size.
These shungite tumbles are a nice size to hold and fit easily into hemp necklaces. You can fit two in the hemp basket. If you are wanting to place between you and the computer I “receive” that four of this size are needed. Check within yourself as to the truth of this.
Note: These tumbles may/may not fit bottle openings – depends on the bottle.
Buy the Shungite book so you can see the healing properties and what tests were done. These were done to show that shungite is more effective than other stones at blocking WiFi etc
If you are going to have an effective WiFi protection against PCs, phone etc at your desk so buy multiples and get a discount. Reason is because tumbles like these are lower grade shungite which can be tumbled and are budget friendly. Note that dimensions are a guide.