Tumble stone sizes generally range from 1 - 3cm
Terahertz Tumble Stone
Terahertz stone is a powerful healing gemstone that can help people who have issues in the bloodstreams. Because of its long wavelength, the stone can help in improving the bloodstream. It improves the flow of blood eliminating the clots in the bloodstream.
Terahertz is a man-made gemstone that is invented by Japanese scientists in order to protect the body against electromagnetic smog and harmful radiation.