Take peace of mind wherever you go with the Master Lock Door Guard. Portable, lightweight, and easy to install without a single tool, the Door Guard enhances your existing lock with an extra layer of security. Perfect for use in hotels, dorms, AirBnBs, short term rentals, apartments, homes, bathrooms, and wherever you need a little extra protection. Fits into a purse, pocket, or backpack. Made with the same high quality materials and craftsmanship you expect from the Master Lock brand.