Skip the gym membership and crowded fitness machines. This foldable ab machine fits into any corner of your apartment, dorm or office, replacing what used to take three or four separate gym tools-an ab crunch machine, a sit up machine and a core trainer all in one. The adjustable ab trainer machine works for first-time beginners just starting out, parents getting back in shape and seasoned gym-goers who want a quick session. Real fitness for real life and real spaces.