Strong And Durable: the robust structure boasts strong impact resistance, effectively resisting forced entry Easy Installation: no screwdrivers, drills, or other tools are required, no drilling into the door frame or panel is necessary, simply insert the lock body into the door frame gap or the strike plate for installation, it won't damage the door, making it safe for renters Double Protection: even if someone with a room card or key is outside, the door cannot be opened from the outside, effectively preventing hotel staff, strangers, or previous guests from entering the room without permission Compact And Lightweight: small and lightweight, it easily fits in a pocket, handbag, or suitcase, making it convenient for business trips, travel, and hotel/guesthouse stays Peace Of Mind For Sleep: especially suitable for women living alone, business travelers, and students studying abroad, install the lock at night for a peaceful night's sleep without worrying about unauthorized entry, Manufacturer: MDSRFGN