Teeter’s inversion therapy tables have been around for quite some time. Many have used them to treat their bad back. The Better Back Neck Restore supports your upper neck / cervical spine to reduce tension in your muscles. You can use it as a self-massage tool or attach it to any Teeter inversion table.
This rotates to allow better positioning and side-to-side targeting. It weighs 1.3lbs and attaches to your table using hook & loop straps. Costs under $40 at this time.