I work over the road as a locomotive engineer. Staying across the road doesn't always allow me to workout like I would like. This has been a wonderful kit to bring with me for those stays. I use them at home when I'm feeling like I don't want to workout around other people. The band's seem to be quality along with the metal d rings and carabiners. Also included is a pamphlet of the resistance of each band and a handful of workouts.