Strong, well-conditioned hands are critical for law enforcement and military professionals. Whether for shooting control and accuracy, cuffing, weapons retention or defensive tactics, using the Gripmaster will greatly improve hand, wrist and forearm strength for outstanding power, control and accuracy. Used by the FBI, ATF, DEA, and the Federal Law Enforcement Training Center. Each Gripmaster comes with a complete exercise program developed by a hand therapist. Fits in your shirt pocket for use anywhere. Great for “dry-firing” when traveling. Available in three tensions. Please specify tension/color.