This is the Gronk Fitness Leg Extension and Curl Machine: a plate loaded adjustable leg extension bench that takes your lower body workout to the next level. It helps you strengthen your legs and avoid knee injuries. You can strengthen your quads with leg extensions. You can also do leg curls to target your hamstrings.
This leg extension and curl machine has 6 x 17″ rollers. It has a pin lock with 23 settings. It also has a 10-inch long sleeve for weights.