Does not hyper-extend the neck. Single EED® air cell decompresses & hydrates discs at moderate pressure levels while shaping & restoring the proper neck curve for comfortable, corrective deep relief.Relieves Painful Neck Stiffness, Headaches and Fatigue. Shapes & Restores the Proper Neck Curve. Decompresses & Hydrates Compressed Discs. Reduces & Corrects Forward Head & Neck Posture. Improves Flexibility and Ranges of Motion. Lightweight, Easy to Operate & Travel With. Made in the USA & Built to Last. The item "Posture Pump Cervical Neck Pain Relief Single Cell Traction Disc Hydrator 1100-S" is in sale since Tuesday, March 5, 2013. This item is in the category "Health & Beauty\Medical & Mobility\Orthopedics & Supports\Other Orthopedic Products". The seller is "moderntrendy" and is located in Whittier, California. This item can be shipped worldwide.