Pronex L Cervical TractionPronex L Cervical Traction Pronex cradles the head and neck on two soft foam cushions. One cushion supports the back of the head and the other rests against the top of the shoulders. An air inflated bellows between the foam cushions provides up to 35 lbs of continuously adjustable traction. As the bellows expands, the patients head moves upward and supports the cervical curve, maintaining an even force that creates space between the cervical