The portable door lock is made of zinc alloy, which enhances compressive strength and ensures reliability and long-term use. Even if it is pushed hard, the door cannot be opened. This door lock provides extra security and privacy for your safety. It prevents unauthorized entry and improves security, suitable for business trips, vacations or living alone. This adjustable door lock is easy to install and suitable for most doors. Just insert it on the door frame and close the door, tighten the screws until it is firm. This door lock has small size, and easy to carry. It can put in the pocket bag, bag, suitcase, taking up little space. The product is suitable for home, travel hotel, apartment, dorm, school, travelers, full-time mothers, students, and more. Specification: Product Name: Portable Door Lock Product Description: The portable door lock is made of zinc alloy, which enhances compressive strength and ensures reliability and long-term use. Even if it is pushed hard, the door cannot be opened. Key Feature: This door lock provides extra security and privacy for your safety. It prevents unauthorized entry and improves security, suitable for business trips, vacations or living alone. Material: Zinc alloy colour: black Package Contents: 2 x Portable Door Lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.