Power Ionics New Style Bio Titanium Sports Bracelet. 3000ions/cc With Germanium,F.I.R,Titanium,Tourmaline Powder Power Ionics Sports Bracelet is designed to release negative ions into your body the moment you put them on. Releases over 3000 negative ions a second! It can help aid in functional body processes, stimulate metabolism, create a feeling of natural energy and improve blood circulation Keep your health in mind by wearing this innovative bracelet whenever you want to feel good. Adjustable length and Waterproof. Negative Ions have an invigorating effect on the human body while positive ions have the opposite effect, quite often inducing a feeling of tiredness. Negative ions are created naturally by the energy associated with rolling surf, waterfalls and lightning. The levels of negative ions present in different environments highlight the deficiency of negative ions in our everyday domestic environment. Ion Result: 3000ions/cc Metals Type: Titanium Materials: Germanium,F.I.R,Titanium,Tourmaline Powder in Bio Silicone Band Size: fits 5 "-9.5" Wrist size,7 holes to adjust Bio Silicone Band Width:0.6" Length: fits 5 "-9.5" Wrist size,7 holes to adjust Weight: 15g Setting Type: Tension Mount Style: Casual/Sporty Come with Retail Hard Box, suitable as Gifts! Colors: Black Grey Black White White Black Blue Black Red Black Purple Black Pink White Grey Orange Blue/Orange Please note there can be some slight color variations from the pictures shown due to differences in computer screens/mobile phone screens