This secure-pull seal is to be used with a Wall Mount Bracket (M3857A) or an AED Wall Mount (989803170891). A HeartStart Defibrillator carry case can be tethered to the bracket or mount with this breakaway Secure-Pull Seal (M3859A), to discharge tampering. A broken seal indicates that the defibrillator has been removed from the Wall Mount and accessories may need to be replenished.