10 Pairs Tens Unit Pads [FDA 510(k) Cleared] Medical Grade Blue Extra Large ElectrodesTens Unit Pads [FDA 510(k) Cleared] Pieces Medical Grade Blue Extra Thick Extra Large TENS EMS Muscle Stimulator Electrode Pads Patches [MEDICAL GRADE QUALITY] High quality reusable sticky pads with wholesale prices. They are very durable and flexible. [EXTRA THICK GEL] To get the best of a tens unit, extra thick gel will allow you to receive pulse in most comfortable way. Easy to remove with no sticky residue left behind [UNIVERLSAL COMPATIBILITY]