With the Deluxe Air Neck Traction Device you can adjust the cushion vertically to fit your neck length. It has three inflatable layers. You can deflate the upper layer if you have a short neck length. This unique feature is only available on the deluxe neck traction device. The portable Deluxe Air Neck Traction Device provides neck pain relief, efficiently supports neck and head, anatomically designed, revolutionizes home cervical traction and it is user friendly and light weight