5 x 3 electrode pack = 15 pack
Cefaly works with an electrode applied on the forehead.
Electrodes are designed to be used between 15 and 30 times.
Very important: the skin has to be cleansed thoroughly and degreased with soap and water before the electrode is applied.
After use, the electrode has to be put back on its transparent plastic support sheet and then stowed in its bag to prevent from becoming dehydrated.