Using these Muscle Sensor Surface EMG Electrodes is easy. First, pair them with the MyoWare Muscle Sensor and a microcontroller. Just attach the snap - on connector to the MyoWare electrode lead. Then place the electrodes on the skeletal muscles where you want to measure the electrical activity. You can use them in your DIY electromyograph projects, like in prosthetics or robotics. After each session, it's recommended to dispose of the electrodes for the best hygiene and user - friendliness. Since they have a pre - gelled adhesive side with non - irritating gel, they're suitable for all skin types. But always check for any signs of irritation. To keep them in good condition, store them in a cool, dry place. Remember, the MyoWare Muscle Sensor and microcontroller are not part of this pack, so you'll need to get them separately for your project.