Applying this sticker is a breeze. Just clean the surface of your insulin pump first to make sure it's dry and dust - free. Then, carefully peel off the sticker from the backing and align it with your pump, slowly pressing it down to avoid air bubbles. As for maintenance, keep it away from sharp objects to prevent scratches. When cleaning, use a soft, damp cloth. Remember, this purchase doesn't include the insulin pump device itself. Enjoy customizing your pump with this awesome sticker!