Patches are waterproof and able to stay through showers</br>Magnets can be re-used by placing the magnet on a fresh piece of plaster with convex (North Pole) facing the skin. Details can be found in instruction manual.</br>Comes with alcohol pads for cleaning the magnets after use or to remove dirt and oil on skin to enhance adhesiveness of the plasters</br></br>Note: Plasters contain medical latex</br>Caution: Keep away from children under 6 years of age </br>Strength of magnet: 600 Gauss</br>Magnet: Non-plated permanent magnets</br>Note: The plaster contains medical latex. Please test on skin if you are uncertain that you may be allergic.</br>Diameter of disc plaster: 1.1in</br>Diameter of magnet: 0.3in</br></br>Package includes:</br>- 30 counts of plasters with magnets</br>- 30 counts of replacement plasters without magnets</br>- 1 small plastic container for keeping magnets</br>- 20 alcohol pads</br>- English instruction manual</br>