ADDITIONAL SAFETY AND PRIVACY: For added security and peace of mind, the Gooriinet portable door lock provides an extra layer of protection when traveling or staying in hotels. This compact device helps secure inward-opening doors, offering enhanced privacy and safety, especially for solo travelers. Once installed, the door cannot be opened from the outside, even with a key, helping ensure a secure and restful stay. FIT MOST DOORS: The 3-in-1 design is compatible with most standard inward-opening doors, making it ideal for use in hotels, dorms, apartments, bedrooms, and bathrooms. It can also help prevent children from opening doors to strangers and keep pets from wandering. Not suitable for sliding doors, double-swing doors, slat doors, or outward-opening doors. SIMPLE TO USE: This travel door lock is easy to install and remove without tools. Lightweight and compact, it can be carried in a pocket or bag for convenient on-the-go use. Designed for doors with a gap of at least 0.12 inches to ensure proper fit. Not compatible with doors that have no gap or seam. HEAVY DUTY CONSTRUCTION: Built with durable 304 stainless steel, this solid metal door lock is strong and resistant to bending or tampering. The reinforced design enhances security and helps prevent unauthorized access.