These hand grip strengtheners are a sure way to increase power and endurance in the muscles of your hands and forearms. Builds up your grip power and tones your forearms for sports and everyday activities. Pack of two allows both hands to be trained simultaneously, and can be used anywhere. Also great for rebuilding strength after an injury.Approximate length: 14cmPlease note: lifestyle photographs for illustration, 1x product listed supplied only. Please read all packaging and instructions thoroughly before use.