1.They are made of pure optically clear quartz crystal (glass won't sing).
2.They are precisely made as only a process of a combination of machine made quartz rods and molds can do to result in precision accuracy, aligned and replicatable angles and mathematically correct sacred geometric Pythagorean Pyramid specs. (like the Pyramid at Giza).
3.You hold the pyramid in one hand or hang it over your healing area and strike it with one of our specially made, cruelty-free strikers using your other hand.