Pure Energy Band uses a new technology using hologram discs that are embedded with frequencies which may help to: · Improve Balance · Increase Strength · Prolong Endurance · Improve Flexibility · Enhance Energy Flow The hologram discs in Pure Energy Bands are embedded with a range of frequencies that communicate with the meridians of your body and can help promote a more balanced, rhythmic and healthy body. Pure Energy Bands use a new technology based upon the combination of energetic and informational frequency balancing. This technology communicates with the meridians of the body which may provide a variety of health benefits. We insert hologram discs which have been embedded with frequencies which can help balance your body to its most ideal levels. This energetic therapy system we use embeds the hologram discs with an energetic frequency using light, sound, electricity, and magnetism. This new bioenergetic therapy can help the human body by frequency balancing based on informational feedback from the client wearing the band. The broadcasting of these frequencies across the meridians of the human body has shown to provide some incredible benefits. Pure Energy Bands are safe to wear in water. They come in multiple sizes as well. SIZES XS = 6.1" S = 6.8" M = 7.8" L = 8.8" 65% of purchases are for Medium bands. Only order a Large if you have very large wrists.