The Sunbeam SelectRelief Modular System, lets you customize for your specific pain needs by choosing back or knee braces; hot or cold capability; and corded or portable power options. This Back Therapy Bundle includes: back brace and heating pad insert. One-size-fits-most back brace features integrated, 6 stabilizing supports, and dual adjustment compression straps for comfortable support. Includes a USB Powered Heating Pad insert, with soft body-facing fabric and Velcro for attaching. Features one high-heat setting; plug anywhere with a USB connection. Add the optional, reusable Hot + Cold Gel Insert (sold separately), with soft body-facing fabric and easy Velcro attachment. Pop the gel insert in the freezer for inflammation reducing cold therapy, or microwave for soothing pain relief heat. Optional GoHeat Power Bank (sold separately) converts the heating pad to cordless and works with any Sunbeam USB powered product.