DESIGNED JUST 4U: Slightly bigger, but sturdier than a tennis ball & softer than a lacrosse ball, ActiveProZone designed the Massage Therapy Ball in a way that helps reach the right spot with the right pressure makes the best out of your self deep-tissue massage. High quality & durable rubber material ensures sufficient grip ? firm enough to remain on the spot you want to treat & gentle enough to not irritate sensitive soft tissue or cause nerve & skin impingement.EASY TO USE: No time or money to visit a physical therapist? All that it takes to relax your tight muscles is the Massage Therapy Ball, your own body weight & flat surface (floor, wall). You can target one specific point (e.g. tender hamstring or stiff neck) or you can use the therapy balls in pairs. We have designed a special mesh bag that is perfect for thigh & spine rolls or other similar exercises. The balls are small enough to fit into any bag, drawer & can therefore be your essential item no matter where you are. LET?S ROLL THE PAIN AWAY: The Massage Therapy Balls are an important requisite that should not miss being a part of your physical therapy equipment. They can be used for various treatments* including trigger point treatment, myofascial release, stress or prenatal therapy, reflexology foot massage & many more. Besides therapies, they well complement yoga, pilates, CrossFit, running & other workout routines. *Always consult your physician before starting any treatment program using massage balls. WE?VE GOT YOUR BACK - LITERALLY: We at ActiveProZone team are dedicated to deliver high quality products & full satisfaction of our customers is important to us. This is why all Massage Therapy Balls purchased through ActiveProZone come with a LIFETIME GUARANTEE. If you are for any reason not satisfied with the product, simply send it back for a replacement or full money refund.