Using the Calexotics Premium Adjustable Crystal Chain Nipple Clamps is easy. First, decide where you want to use them on your body, most commonly on the nipples. Then, gently open the adjustable clamps and place them on the desired area. You can adjust the tension by turning the dial to your preferred level of intensity. Remember, as you tighten the tension, the feeling will get stronger. It's important to start with a lower tension and gradually increase it to avoid discomfort. When you're done using the clamps, carefully remove them from your body. To maintain the clamps, keep them in a cool, dry place. You can clean them with a mild soap and warm water. Make sure to dry them thoroughly before storing. Also, avoid exposing the clamps to harsh chemicals or abrasive materials as this can damage the crystals and the chain.