Abstract: A device is shown which is utilized to strengthen gripping muscles of the user's hand as well as thumb muscles of the user's hand. The device has first and second handles which may be gripped by the user to strengthen the user's gripping muscles. The device may be oriented upside down so that the user can grasp the first and second handles with his or her left and right hands. The user's thumbs may rest upon thumb pads extending out of the first and second handles. These thumb pads may be depressed cyclically to strengthen the user's thumb muscles. Accordingly, the device provides additional features and benefits.