The Rack Mount Leg Roller and Lat Tower Knee Holder is a combo attachment featuring a 18" long pad with a 5" diameter and a quick-mount J-hook style design that easily secures to the X-3 and TITAN Series Racks. The attachment works to keep you seated as you pull multiple reps on the Rack Mounted Lat Tower or as a unique leg roller helping provide leg strength, balance, and coordination when performing one-leg squats, Bulgarian squats, and lunges. While focusing on lat pull-downs, the Leg Holder pad centers in the middle of the rack under the lat pull down bar. As a Leg Roller, the attachment mounts to the inside or outside of the power rack. This versatile single combo attachment is a great addition to your home gym and is equipped with a heavy-duty vinyl cover for added protection.