Triphasic ISO Cups

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 3×3″ 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.