NeckPro Overdoor Cervical Traction By using a precision-made compression string and a unique ratcheting device, the NeckPro delivers a more precise amount of cervical traction tension. Each click of the ratchet signals a 1 lb. (.5kg) increase in the tension being applied, allowing the patient to monitor and track the settings. The head halter is easy to apply and comfortable even under high levels of cervical traction tension. Quick-release straps on the NeckPro give the patient a convenient way to relieve unwanted tension without having to worry about a new setup. Includes door bracket.