Share your team spirit by showing off your team colors with an American Power FANBAND. Fan bands are silicon bands infused with  tourmaline.  Each band generates up to 1800 negative ions per cubic centermeter. Negative ions are believed to increase stength and balance and decrease aches and pains. According to WebMD, negative ions are also believed to increase the levels of serotonin in the bloodstream, promoting better sleep, alleviating depression, improving memory, plus positively affecting many other neurological processes within the body.