Reliable stainless steel construction Constructed from thickened stainless steel, this antitheft door chain provides durable security against unauthorized access and stands up to regular use over time. Flexible mounting options Can be installed in flat mounting or side mounting configurations to fit a variety of door designs and installation spaces. Enhanced security features The antilock design adds robust protection against tampering or forced entry, helping keep your living space safer. Easy to operate locking mechanism A prepunched latch system allows for straightforward locking and unlocking without compromising security. Key benefits and what it solves Provides controlled door access, enabling you to verify visitors before fully opening the door. Delivers longlasting durability with a corrosionresistant stainless steel build. Offers flexible installation to accommodate different door setups and preferences. Improves safety through an antilock design that resists tampering and forced entry. Simplifies use with an easytolock, easytounlock latch mechanism. Use scenarios Front door of a home or apartment: screen visitors, deliveries, or service personnel without fully opening the door. Shortterm rentals or hotel rooms: safely verify guests or cleaners before granting access. Small office or reception area: manage entry for customers or staff by limiting door openness while communicating.