SENTRY Portable Door LockEnhance Your Security Anywhere You Go with SENTRY! "So glad we purchased this because as a traveler couple we need safety in rooms we choose to checked in. It's very useful to have around and we attach it on any door" Vincent G. Prevents Any Unauthorised Entry Ensure your safety in RVs, hotel rooms, and Airbnb properties with SENTRY. This portable door lock adds an extra layer of security, providing peace of mind and safeguarding you and your family