Triphasic ISO Cups

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Triphasic ISO Cups are patent pending and were made in collaboration with Cal Dietz of Triphasic Training. They securely hold the barbell in a groove, allowing athletes to perform isometric barbells lifts safely and easily. Compatible with 1" or 5/8" hole racks on 3x3" tubing. Triphasic ISO Cups allow the athlete to focus on the isometric contraction and not worry about the barbell. Click here to learn more about Overcoming Isometrics from Cal Dietz. Show more