The Self Snag Cervical Strap is excellent for the self-treatment of C1/C2 rotation restrictions. Resrictions at this level cause headaches, some of which can be severly disabling. The Cervical Strap is just the right width to effectively manage the transverse process of C1. Mulligan SELF SNAG Lumbar Strap The Lumbar Strap is thin enough to hook under the chosen lumbar spinous processes, and can be held securely to get the maximum lift up on the spinous process.