Portable Door Lock Hotel Travel Door Lock AirBnB, Lock, College Dorm Lock, Hotel Lock, Motel Lock, School Lockdown - Security for Apartment and Home Living, Door Security Devices for Additional Safety

Working principle. The door can't be open easily even if others have the key outside the room when you are sleep and rest. The claw of the metal board insert the strike plate firmly after close the door. Then the red board can play the role of stopper after install it on the mental board. You have to install the red board behind the door rather than the door frame,so you can prevent the door from opening. ATTENTION:This Product is just suitable for door that open inwards.And the width of the door seams must be over 3.1mm to use the metal plates. Package includes: 1 set of portable door lock 1 pieces of porbable bag for the lock