1x Door Stop Alarm,This is an upgrade door stop than others.1x Portable security door tools,The upgraded portable door lock has two locking holes of different sizes, which is suitable for more doors. Dual Protection 1:This portable door lock provides you with extra security and privacy, greatly improving your security and preventing unauthorized entry, so the door can't be opened from the outside, not even with a key; which is a great helper for you when you are on business and trips, or live alone Dual Protection 2: the door stopper alarm with 120DB siren, Once someone opens the door, the door stopper alarm will go off in the first place, they will scaring away bad guys and helps wake you and give you time to find help EASY TO USE: Easy to install or remove, Our Security Door lock Kit can be installed in seconds without any tools, Perfect for hotels, dormitories, apartments, short-term rentals, Airbnbs, bathrooms, bedrooms, or private rooms. It may also be applied to avoid pets going out, and also to prevent children from opening their doors to strangers