Portable door lock that installs in seconds with no tools required. The instruction manual contains provides you with additional security and privacy. The portable door lock cannot be opened easily even if others have the key outside the room when you sleep and rest. Iron piece 5.12*1.6 *0.47 inch, intermediate chain length 4.7 inch, red 2.16*0.39 inch. gives you extra safety, security and privacy. Use it at home or take it with you when traveling, apartment living, hotel students, school lockdown, also great if you're staying at an AirBNB or other short-term rental. The security lock is equipped with a carrying pocket bag. Ideal for renting a room, traveling and going on vacation. They are all handmade and some imperfections are normal. Does not affect normal use. Install the door lock carefully, or it would be easy to bend and break. And the door lock is the second protection, you also need to lock your door, instead of relying on it. Tips: The seams of the door should be more than 3mm. This allows you to stay safe indoors, wherever you are, at home or elsewhere.