Knee Holder for Lat Pull Down for FPR90GTXThe attachment works to keep you seated and your knees braced as you pull multiple reps with the FPR90GTX KNEE HOLDER. It can also be used as a unique leg roller, helping provide leg strength, balance, and coordination when performing one leg squats, Bulgarian squats, and lunges. The Knee Attachment is constructed with thick, durable high density foam padding and commercial vinyl equipped with a rip stop mesh backing to help prevent rips and tears. We