CORE wheels Ab and Upper Body Fitness Workout Equipment Versatile ab and upper body workouts appropriate for both novice and advanced fitness levels Sturdy design is trusted by the US Navy SEAL teams, Pilates studios, and major gyms Rolling exercises engage more muscles resulting in stronger abs, core and arms in just minutes a day Compact design travels and stores easily; custom wheels will not slip or mar floors Includes an atractive wall poster illustrating 6 exercises plus a DVD featuring 3 complete workouts: strength, core & abs, flexibility