We ship our products around the world.

Captains of Crush® Grippers: Certification

by Randall J. Strossen, Ph.D. | ©2012 IronMind


Over the years, the rules for being certified for authentically closing an IronMind Captains of Crush (CoC) No. 3 or No. 4 gripper have grown in response to potential loopholes that are not in the spirit of legitimately closing one of these world-renowned, benchmark grippers.

Because of questions raised about the possibility of someone nudging a gripper shut while it is blocked from view and then turning the hand, showing that the gripper is shut, the fourth rule has been modified, with added language, as follows: "The free hand may be used to position the gripper in the gripping hand, but must then be removed, and must stay at least a foot from the gripping hand at all times during the squeeze. Similarly, nothing may be in contact with the gripping hand or the gripping arm from the elbow down (for example, the free hand is not allowed to steady the wrist of the gripping hand, hold the spring, etc.). At least the last inch of the squeeze must be clearly visible (the gripper cannot be closed while blocked from view and then turned and presented as already closed)."

The revised rules go into effect March 1, 2003.  Click here for the official Captains of Crush Gripper certification rules.

 


IronMind: Tools of the Trade for Serious Strength Athletes . . . home of Captains of Crush Grippers, MILO, SUPER SQUATS, Just Protein, the Rolling Thunder, Mastery of Hand Strength . . .

Check out our Resource Pages for more information on grip training; Olympic-style weightlifting and weight training; and strongman and World's Strongest Man.