4cm pyramids put out a 1.5m (5 feet) field in all directions.
Place one next to your computer, in your handbag and have one in your car
Shungite pyramids neutralise the negative effect from wireless, electromagnetic, radioactive and geopathic emissions by grounding, balancing and strengthening your energy systems. (Ref: Regina Martino, bioenergetics researcher, Shungite: protection, healing, and detoxification (research book)).
Shungite's molecular fullerene structure "opens wide prospects for their use in construction of bricks and plaster composite mixtures, to create screening compartments and facilities to protect against the impact of various types of radiation". (Ref: Moscow State University, Russia & Scientific Research Centre of Medical Biophysics, Bulgaria)