Suitable for most people who need to strengthen their hands, such as athlete, Musical Instruments, office worker. Make from silicone materials, rings designs increases frictions, nonslip and enduring. It can help increase hand strength, improve grip strength, and improve finger flexibility. 2 different strength can adjusted, suitable for each training stage. Small and portable, you can exercise hand muscles at any time. Perfectly Sized for a Comfortable Fit for: Perfectly sized for grip strength training for both men and womens. Can used at homes, office, gym and other place, and fast, at anytimes to carry out hand strength training.
