Triphasic ISO Cups Hole Size:4x3" PowerLift Racks bearings for smooth rotation and

bearings for smooth rotation and rubber balls on the ends

Strength Coach Tobias Jacobi requested this specific size and angle

This allows more athletes to train neck at the same time as you can get 5+ attachments for the price of one stand alone machine

this streamlined unit attaches with a single bolt and takes up less space on the upright than three separate pegs

Triphasic ISO Cups Hole Size:4x3" PowerLift Racks bearings for smooth rotation andTriphasic 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.