Designed for all door bolt sizes Unlike the other portable door locks which are available , our portable lock has an improved design and can be easily used for door locks with bolts of all sizes. Hence the lock can be used on a greater number of properties. Compact and portable Our portable lock for doors is compact and can be easily carried in the hand. Alternately the traveler can keep it in his pocket or wallet to conveniently carry while on a business trip , holiday or other trip. Since it is more portable compared to other travel door locks available, it will not added to the luggage weight Used extensively for many applicationsThe door security locks can be used for a wide variety of different properties like apartment, dormitories for students, hotel, motels. This door jammer will allow the user to sleep peacefully, eliminate all kinds of interference, and allow you to do whatever you wish without being disturbed. It will provide additional privacy and security. Simple to installThis door security device is very easy to use since it can be installed on the door within a few seconds, without using any tools.Please refer to the instructions in the fifth picture.