Gripmaster Hand Exerciser Heavy Tension
Gripmaster has turned grip strengthening into a science with their highly advance hand strengthener. Unlike other grip strengtheners which take a whole hand approach, Grip Master gives you the option to work each digit individually which adds a whole other aspect to what is generally a pretty simple device. It uses a mixture of plastic for the molding and finger pieces, aluminum and steel for the spring loaded piston resistance and a rubber bottom for comfort.
This device is definitely the most comfortable hand strengthener on the market because of its size and shape but the new rubber palm pad enhances its comfort tenfold so you really only need to focus on the squeezing motion. Grip Master offers their product in seven different resistance levels from beginner to pro extra heavy with all being color coded for easy selection.