This twisted bracelet set has electrical properties much like the "cylinders of the pharaoh". Made from pure copper and pure zinc solid wire 3/32" diameter and has 3/8" diameter stone beads on the ends. No sharp edges! The copper is worn on the right wrist and the zinc on the left wrist produces .06 volts while being worn! The first electric bracelet set ever made. If you have any problems with the bracelets, please let me know and I can work with you to resolve any issue. Ships same day if ordered before 3pm EST otherwise they will ship the next day at the latest.