Promotional First Aid, Comfort Logic Lower Back Heating Wrap, Provides soothing heat to the lower back Has three temperature levels settings Zippered pocket, in the hook side, contains a USB-A plug that is compatible with most power banks (power bank not included) Soft cover to ensure a cozy and snug fit Portable and lightweight Cover is made with polyester and spandex material Heating pad contains metal composite fiber … #CLG-BH25 $19.33/each.