A cervical traction set from Lumex is great for relieving neck and back pain while at the same time strengthening your muscles and spine. 1-size-fits-all traction set fits over most doors with a capacity of 20 lbs. Made of sturdy, chrome-plated steel. Comes with everything you need to start relieving pain right away, including head halter with metal support rings, hook and loop closures, over-door clamp, pulley, 12" adjustable spreader bar, 8" traction rope, double-sealed vinyl water bag and "S" hook.