Noproblem Pearl Ion Balance Sports Bracelet P054 "Black" Much Stronger than Power Balance Much stronger than Power balance: Power Balance only works in one specific Frequency of unknown origin. NoProblem Ion Balance uses known compounds to produce the proper frequencies plus far infrared. Using a combination of Magnetics, Germanium, Silicon, Bio Ceramic and Tourmaline. can be cut to size: Material: Tourmaline + Bio Ceramic + Germanium + Silicon This is the most powerful healing bracelet on the market ! Facilitate sleep, stabilize nervous system, promote cell regeneration, and prevent aging. Improve concentration and boost work efficiency. About Negative Ion: Negative ion is also known as longevity element, which is a natural cleaner of the air and vitamin in the air. It has been confirmed by medical workers that negative ion has the ability of sterilization and can clean the air. Negative ion can relieve fatigue, and keep the balance of body, remove nerve fatigue, promote blood circulation, and increase metabolism. All these contribute to relieve fatigue, alleviate muscle pain, increase immunity and concentrate energy etc.