Using your SISU mouthguard case is a breeze. Simply open the case and place your mouthguard inside. You can also use the extra space to store small personal items like keys or a piece of gum. When you're on the move, clip the carabiner handle to your bag or belt loop for easy carrying. Remember, the mouthguard is sold separately, so make sure you have your own. To keep the case in good condition, clean it regularly with a mild soap and water. Let it dry completely before using it again. Avoid exposing the case to extreme heat or cold, as this may damage the material. With proper care, your SISU mouthguard case will serve you well for a long time.