Ideal for use to improve grip and hand strength

As a bonus with the product comes a downloadable Training Manual with over 40 exercises for adults, children and gamers. You can also get the manual for free at the company website, http://www.Flexofist.com/exercise-manual covers and there are links to purchase the rings if you so wish. http://prsync.com/richman-trading-/richman-trading-announce-new-stock-arriving-daily-882251/