Portable door lock — 304 steel, 9.7 cm, silver Key benefits Immediate extra privacy and security: Gives you control over your personal space in temporary or shared situations without changing the door hardware. No permanent installation: Provides a quick, temporary solution to improve safety without drilling or altering the door. Robust, compact design: Made from 304 steel for strength and durability while remaining small and travel-friendly (9.7 cm, silver finish). Superior hold with adjustable double-nut design: A non-drilling, adjustable double-nut mechanism increases resistance to forced entry where you need it. What it does Prevents unwanted opening of doors in rooms where the built-in lock is missing, inadequate, or shared. Easy to take with you and install when needed, then remove when you leave — ideal for renters, travelers, and temporary living situations. Key attributes Function: Portable, temporary door lock that enhances privacy and security without permanent changes. Compatibility: Designed for use in a variety of environments — hotel rooms, bedrooms, bathrooms, offices, apartments and school dormitories. Size: Compact, 9.7 cm length for easy storage and travel. Material: Constructed from 304 steel for durable, reliable protection. Performance: Adjustable double-nut, non-drilling design for improved holding strength and added peace of mind. Practical use scenarios Hotel travel: Add an extra layer of security in a hotel room when you want more control over who can enter. Shared housing and dorms: Prevent accidental or unwanted entry in shared apartments or student dormitories during sleep or private moments. Office or temporary workplaces: Secure a private office or meeting room quickly when hosting confidential conversations or unexpected visitors. Simple to use Designed for quick installation and removal without permanent modification to the door. The adjustable double-nut design allows positioning for a secure fit, providing extra protection whenever and wherever you need it.