Quick-connect a pair of heavy duty performance Abs Straps to your Perfect Pull-up bar or any standard pull-up bar for abs-defining workouts the way the pros do it. Experienced professionals use Abs Straps to perform off-the-floor crunches and leg lifts. Perfect Abs Straps are sturdy, comfortable and designed for years of performance. Made with heavy-duty nylon straps and mountaineering-grade steel carabineers. Extra comfortable - cushioned with thick foam padding.