No batteries need

Everyone can benefit from POWERBALL Sportspeople and Musicians Bicyclists and Motorcyclists Hand numbing from keeping the hands in one position for too long, can be a problem for cyclists and motorcyclists. There have been many positive reports from people using POWERBALL to alleviate this type of problem. Computer Users Those who sit daily in front of a computer or who engage in repetitive activity can relax their muscles from time to time with short use of the POWERBALL (1-2 minutes are enough). It's the perfect way to prevent OOS or RSI from occurring. Older People POWERBALL can help maintain movement and coordination skills, which could be useful during later years in life. In such cases, please consult your doctor before use.