Keep Security and Privacy - This portable door lock provides you with extra security and privacy, the door cannot be opened from the outside even with a key, greatly increasing your security and preventing unauthorized entry, is a good helper when you on business, business trips or living alone . Easy to Use - Easy to install or remove.Just insert the metal piece into the slot of the door lock, close the door, and then put the handle groove to the stud on the metal sheet, then no one can open the door from outside.The door lock can be installed in seconds without any tools, even in emergency situations and in the dark. High Quality Material -The door security device is made of strong stainless steel.A strong door lock with high quality may guarantee prolonged service life. Rugged ABS plastic cover to prevent damage to doors under pressure. Steel surfaces with electroplating and polishing technology ensure a smooth touch and minimize any injury to your skin. Widely Used - The security door stopper contains two holes of different sizes to ensure that all types of door locks are matched.It can be applied to avoid pets going out, and also to prevent children from opening their doors to strangers. Perfect for hotels, dormitories, apartments, short-term rentals, Airbnbs, bathrooms, bedrooms, or private rooms.