Features： 1、The electrode pad has a fine appearance, neat edges and no glue overflow, convenient for use. 2、The conductive adhesive layer of the electrode pad is not easy to cause irritation to the skin. 3、After 15 minutes of using the electrode pads, the adhesion is still strong and good, practical. 4、The electrode pad is made of high?quality non?woven fabric to ensure durability and performance. 5、It is relatively soft and breathable. Self?adhesive, no additional tape is required. It is reusable. 6、The specially designed holes release the generated heat, bringing more comfort and less stimulation. Specification： Item Type: Electrode Pad Material: Non-Woven Fabric Button Size: Approx. 2.2mm / 0.1in Applicable Symptoms: Waist pain, back pain, shoulder pain, sore throat, leg pain, arm pain Instructions for Use: 1) This product cannot be used alone, it can only be used with a barrier test device or a swallowing physiotherapy machine. 2) When using, we recommend that you gradually increase the strength from strength 1 to a satisfactory strength, and you must ensure that the patch is well connected to your skin. 3) If there is a tingling sensation during use, please move to a suitable position and try again. Please make sure your skin is clean. Package List： 2 x Electrode Pad