Contents: 2 pairs of gel pads. For use with Aleve Direct Therapy Tens device (sold separately). Relief from lower back pain associated with sore and aching muscles. Gel pads not made with latex. Patented, reusable gel pads can be used for multiple applications. Take back your back! Lower back pain can keep you from doing the things you love. Relieve the pain at the source with Aleve Direct Therapy - a discreet, wireless, drug-free device. The Aleve Direct Therapy Gel Pads are intended to be used only with Direct Therapy Wireless Tens devices sold separately. Follow the user manual of your Aleve Direct Therapy device for proper use, application and storage of these gel pads. Unused gel pads should be stored in the resealable bag.