The Door Gym is a multi-purpose advanced pull-up device for use on a door for pull-ups and exercises to strengthen the core muscles.  The device can also be used on the floor for sit-ups, push-ups, and back and arm exercises.  The Door Gym allows you to develop, strengthen, and shape various muscles in the body: front arm, back arm, back, abdomen, chest, and shoulders.  The bar has 3 different grips: narrow grip, wide grip, and regular grip.  Made of strong and high-quality steel with a sponge coating for a comfortable grip.  Suitable for a wide variety of exercises: tension, abdominals, push-ups, parallel bars, and sit-ups.