SECURITY AND PRIVACY The security lock is equipped with a carrying pocket bag. you can put it in a pocket or purse. can be used when staying in a hotel or other short-term rental. When you fall asleep. someone outside the door cannot open the door with the key. which greatly improves your safety. EASY TO USE Portable security door locks can be quickly installed and removed without any tools or drilling. An indispensable safety assistant for travel. The first step is to open the door and insert the metal piece into the door lock slot the second step is to close the door. then to put the red handle groove on the stud of the metal part. installation is complete. WIDELY USED Perfect for motels. hotels. resorts. the dorms. apartment security. short-term rentals. the bathrooms. the rooms. etc It can also be applied to prevent animals from going out and to prevent children from opening their foreign doors. The security of the door lock is the second protection. you must also lock your door. instead of relying on it. PORTABLE DOOR LOCK They are suitable for doors that have hinges and open inwards. there must be adequate door space (3 mm door space). the upgraded door lock has two different sizes of door holes: 0.87 * 0.78 inch door holes 1.18 * 0.78 inch door holes: not for sliding door. double opening door. slatted door and hinged door. TAILORED CUSTOMER SERVICE In your suitcase. there must be a portable door lock to give you an extra sense of security during the trip. Sure. you can also give it to your friends and family to ensure their safety and care.Tips: If you have questions. do not hesitate to contact us immediately by e-mail.