A by-product of famed inventor Nikola Tesla's search for universal energy, plasma balls use a cleverly engineered device called a Tesla coil to ionize globe-encased gas, producing the gorgeous plasma we all know and love. Watch as harmless yet vivid tendrils of red, pink, and purple electricity stream from the high voltage center to the low voltage glass, following your fingers and hands. Perfect gift for children, coworkers, friends, and family!

Available in various sizes from 3in to 5in in globe diameter.