Color Name:2 PCS  Amazing working principle.The door can't be open easily even if others have the key outside the room when you are sleep and rest.This is a portable door lock that can be easily installed and removed in seconds on door that open inwards.The width of the door seams must be greater than 3mm to install the metal plates.Key Features:Giving you additional safety, security and privacy behind it. Use it on the front door,others door in your home and take one with you when you travel.The portable door lock can be used when staying in a hotel, an AirBNB or any other short term rental.Great for students away at college and for those same colleges and schools to use as an affordable option for their safety.30 days money back guarantee for any unsatisfaction and 180 Day Quality Gurantee.How to use it:1.Test to fit.Insert the back of the handle to see if have enough room for it to fit.2.Open the door enough for you to insert the claws into strike plate3.Once the claws are in the strike plate,close door and the portable door lock will be held in position.4.Install the red stopper on the metal board behind the doorWorking Principle: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.What's in the box:2 set of portable door lock2 pieces of porbable bag for the lockAn Installation Instruction 
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