Application:Upgraded Portable door lock will provide extra security and privacy to you, make sure you are safe. Greatly improving your security and preventing unauthorized entry,which is a great helper for you when you are on business and trips, or live alone.The additional lock device is especially designed for travelers, college students, single mothers, suitable for families, hotels, schools, travel, etc. Feature -Portable :This compact and portable lock travels anywhere. Easily slips into a purse, briefcase, backpack, or suitcase. -Widely Use :suitable for most types of the door lock. Perfect for hotels, dormitories, apartments, bathrooms, bedrooms, or private rooms. -Easy To Use:The hotel safety door lock is easy to install or remove without any tools. -Durable Material:The travel door lock device is made of quality 304 stainless steel,has a longer service life and is more durable than other door locks. Warm reminder: this door lock safety can be applied for doors with the following characteristics: 1. interior door opening; 2. the side of the door must be flat without protrusion; 3. the door seam must be larger than 0.3 cm (0.12 inch), and the door without seam cannot be applied; Please confirm that your door meets the above characteristics before placing an order. Quality Guarantee, If there is any quality problem, please feel free to contact us. or Replacement for any quality problem. Security and Privacy :Portable door lock upgraded will provide extra security and privacy to you, make sure you are safe. Greatly improving your security and preventing unauthorized entry,which is a great helper for you when you are on business and trips, or live alone.The portable door lock is fixed by adjustable thread, which is more stable after installation Widely Use: Travel portable door locks 3 in 1 special design is suitable for most types of the door lock. Suit for most of home, hotel, apartment, dormitory, bedroom doors. Door locks prevent children from opening their doors to strangers Easy to Use No Drill Door Lock: No need to nail or screw into anything, just insert the claws into the strike plate, close and lock the door, and then tighten the wing butterfly screw. WOIRON door lock upgrades an additional nut to fit the issue when the door and door frame have different surface levels, adjust this additional nut to cover the level difference. Even if someone else has the key, they can’t open your door.Then no one could get in and in case of an emergency you could remove the lock in seconds in the dark Durable Materials : The door lock device is made of quality 304 stainless steel precision casting, sturdy and durable,enough not easy to bend with force, it has a longer service life and is more durable than other door locks Compact Size and Travel Safety, Perfect Travel Gadgets and Gift Ideas: lightweight and small, you can put it in a pocket, handbag, briefcase, backpack, or suitcase. Take WOIRON travel door lock for your own trips, or send it as a travel gift for the one who likes traveling, add a portable door lock to provide a strong sense of safety and peace of mind for travelers, college students, singles, at-home parents Tips: This portable door lock it doesn't work for all doors safety, designed for hinged doors with an extended length to fit a wide range of sizes,can be applied for doors with the following characteristics: 1. interior door opening; 2. the side of the door must be flat without protrusion; 3. the door seam must be larger than 0.3 cm (0.12 inch), applicable door thickness needs to be within1 and 1/8", and the door without seam cannot be applied