Using your tempered glass screen protector is easy. First, make sure your Tandem Diabetes Care pump screen is clean and dry. Remove the protective film from the back of the screen protector and carefully place it on the pump screen, starting from one edge and smoothing out any air bubbles as you go. When it comes to maintenance, use a soft, dry cloth to wipe the protector clean. Avoid using harsh chemicals or abrasive materials as they can damage the protector. As for precautions, handle the protector with care as it can break if dropped or mishandled. Also, remember that this purchase only includes the screen protector, no devices are provided.