The drop set pins allow the trainee to perform additional repetitions beyond the point of failure without touching the weight stack or pins themselves. The pins allow an instant "spot" when needed. This enables the trainee to continue unassisted or perform descending sets without any delays common with repositioning weight selections or user position on equipment. When a decrease of resistance is needed to continue the set, simply lower weight to resting position then continue with your pre-set selection(s). When used as directed, these pins greatly increase the efficiency & intensity of your workout. Transform your ordinary equipment into extraordinary machines!