Terahertz is a man-made stone that was researched and produced by Japanese scientists as the most effective material for blocking Electromagnetic Frequencies (EMF).
Studies have found that Terahertz is even more affective than Shungite at protecting one against these harmful rays.
All tumbled stones are priced and sold individually, unless otherwise noted.
Due to the unique qualities in each stone, sizes can vary from 0.75 inches to 1.75 inches per stone.
