The Primal Strength Jammer System Convergent Handles take the “Jammer” concept to a whole new level, letting you perform countless plate loaded exercises from the front of your power rack. It’s like having a full gym of plate loaded machines in one! Overhead Press, Squat, Deadlift, Lunges, standing rows, chin-ups, shrugs, dips, lateral raises, upright rows, and countless other exercises are possible; just set the Slide Rail to your desired height, pull the indexing pin to adjust the starting angle of the arms and then load with Olympic plates and get busy. Add in a Primal Strength adjustable bench and even more options open up. How about seated converging chest presses, converging seated overhead presses, seated chest supported rows, or seal rows? All either one side at a time or both together. No matter what exercise you’re doing, the 75mm heavy gauge box section and sealed bearing units will give a rock solid feel, the steel Safety Stop bar will provide a safe start and end point for