This self-defense door stopper is made of high-quality stainless steel, providing extra security and privacy to prevent unauthorized entry. It's easy to install, suitable for most types of door locks, and can be used in hotels, bedrooms, or private rooms. Compact and portable, it is great for business trips or when living alone, helping to protect yourself from potential danger. Features 1. Security And Privacy: This portable door lock provides you with extra security and privacy, greatly improving your security and preventing unauthorized entry, so the door can't be opened from the outside, not even with a key; which is a great helper for you when you are on business and trips, or live alone. 2. Easy To Use: It's easy to install without any tools. Girls can also complete the installation quickly. Even if someone else has the key, they can't open your door. 3. High-Quality Material: The door security device is made of strong stainless steel. Steel surfaces with electroplating and polishing technology ensure a smooth touch and minimize any injury to your skin. 4. Widely Used: The security door stopper suitable for most types of door locks. Perfect for hotels, dormitories, apartments, short-term rentals, bathrooms, bedrooms, or private rooms. It may also be applied to avoid pets going out, and also to prevent children from opening their doors to strangers. 5. Compact Design: It's small, light and easy to carry, with light weight and compact size, it is portable and can be carried in your pocket or handbag to provide self-protection. Specification Material: Stainless steel Color: Black, Gold Size: 8 x 2 cm Weight: 56 g Package Include: 1 Door Lock