The Overdoor Cervical Traction Set is an easy to use cervical traction therapy device. This Cervical Traction set comes complete with everything you need to start your traction, including head halter, pulleys, traction rope, spreader bar, S-hook and vinyl water bag with graduated scale up to 20 pounds Foam padded head halter with hook and loop adjustment to fit most adults. Pulleys. Traction rope. Notched adjustable spreader bar. S-hook. Vinyl water bag with graduated sale up to 20 lbs. Relieve stress and muscle tension.