The Meyers neck wrap has four coils that deliver pulsing magnetic field therapy to the cervical spine and the associated muscles of the neck. There are many acupuncture trigger points in this area. Excellent for poor extension and tight muscles. Connects into the withers pocket;this means you can operate the blanket and neck wrap (and all options) at the same time. Within 30 minutes the therapy is complete! You must have one of the Bio-Pulse Blankets in order to use this product. Ask us about rental options