Add more possibilities to your AeroPilates reformer workout than ever before with the AeroPilates Pull-Up Bar. This attachment fits any AeroPilates reformer that has pulley risers. To use the Pull-Up Bar, simply loosen the locking knobs to remove the pulley risers, insert the Pull-Up Bar Attachment and re-tighten the locking knobs. Use one, two, three or four cords to make the pull-ups easier or more difficult. This is a great way to condition your upper body targeting back, shoulders, biceps and triceps.