Using these insulin pump stickers is a breeze. First, clean the surface of your insulin pump to make sure it's free of dust and dirt. Then, carefully peel off the sticker from its backing and align it with your pump. Slowly apply the sticker, smoothing out any air bubbles as you go. When it comes to maintenance, just use a soft, damp cloth to wipe the sticker gently if it gets dirty. As for precautions, remember that these are just stickers, and no insulin pumps or other devices are included in the purchase. Don't try to use them on devices they're not designed for, as they may not fit properly and could interfere with the pump's operation.