Comes with a drawstring storage bag!! The portable door lock can only be used on inward-opening doors. (Cannot be used on outward-opening or sliding doors) Suitable door hole size: approx. 23 x 20mm ✅ Easy to install without tools. Please use it when traveling, etc. Provides added safety, security, and privacy. ✅ The portable door lock is suitable for motels, hotels, resorts, family trips, dorms, apartments, short-term rentals, bathrooms, bedrooms, etc. Please note that the outer box will be folded for shipping.