This image shows a 3-layer inflatable cervical neck traction device used for neck support and stretching. [1, 2]
Design: It features a tiered, multi-layer inflatable air chamber design attached to a hand pump via a flexible tube. [1, 2, 3]
Function: Pumping air into the collar expands the tiers to gently lift the jawbone and stretch the cervical spine, which appears to help relieve neck pressure and muscle tension. [1, 2]
Usage: It is portable, lightweight, and adjustable, allowing users to control the inflation level for customized support during travel or at home