Turn you upper body into the perfect V shape by adding the chin-up/sit-up bar to your routine. Holds up 300lbs, Fits doorways 27" to 36" with one telescoping end. Foam covering moves to desired hand position. 2 sets of mounting brackets for easy switch from chin-ups to sit-ups. Sculpt abdominal muscles. Build a bigger, stronger chest. Develop powerful shoulders and back.