Roman Chair, Hyper Extension Bench | Marcy JD-3.1 Grip Bar It generates a 1:1 ratio

It generates a 1:1 ratio of resistance from weights loaded on the sliding post

Capacity Weight: 550 lbs (170 kg)

The options are seemingly endless on this machine with its lunge and shrug handles

but a cornerstone of health and performance

adjustable-height crutches with quick-release pop-pin knobs to match ideal training position while providing maximum comfort and safety

Roman Chair, Hyper Extension Bench | Marcy JD-3.1 Grip Bar It generates a 1:1 ratioSturdy, convenient and effective, the Marcy JD 3 Roman Chair and Hyper Extension Bench is the epitome of core strengthening home gym equipment. This easy to assemble, compact design provides a safe platform for carving out six pack abs while also targeting your back muscles and glutes. High density foam, padded handles, adjustable two foam leg holders and polymer upholstery accommodate all your comfort needs so that you are able to use this workout