A Chin Up/Dip Assist Belt can attach to any two cable pulleys on any Inspire functional trainer. It’s designed to give you assistance as you perform chin ups and dips, but it can also be used to perform weighted squats & weighted lunges.A Chin Up/Dip Assist Belt can attach to any two cable pulleys on any Inspire functional trainer. It’s designed to give you assistance as you perform chin ups and dips, but it can also be used to perform weighted squats & weighted lunges.