DESCRIPTION: 【SAFETY LOCK】- This portable door locker offers peace of mind by mechanically blocking the door opening from the inside, greatly improving your security and preventing unauthorized entry, so the door can't be opened from the outside, not even with a key. Great for, hotels, AirBnB, hostels, college dormitories, apartment bedroom, or any room, and travel. 【EASY TO USE】-This apartment door lock is installed in under a minute and requires no tools. Unlike other portable lock devices like a door stopper, barrel bolt latch, door security latch, door shims, or door strike plate, our door blocker security lock can be installed almost anywhere. Easy to install or remove, this door lock can be installed in seconds without any tools, even in emergency situations and in the dark. 【WIDELY USE】- The door lock contains two holes of different sizes to ensure that all types of door locks are matched. This door lock portable is compatible with the most common residential doors. We offer 2 of the most common door sizes of 0.8" and 1.2". For maximum security, door safety lock only works on single inward swinging doors. Does not work for outward swinging, double doors, or sliding doors. 【STURDY METERIAL】- The door security lock is made of strong stainless steel. 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. A strong door lock with high quality may guarantee prolonged service life. 【A GREAT HELPER 】-Our door stopper security lock has been meticulously designed and tested for maximum strength and reliability. Which is a great helper for you when you are on business and trips, or live alone.