Sturdy construction Built with copper and stainless steel materials, this lock provides durable security for all door types. The construction helps resist wear over time and maintain reliable performance in everyday use. Simple locking mechanism The singlesided design offers convenient control: outside access via a key, inside access via an internal button. This enables quick locking and unlocking without fuss, helping you manage entry with ease. Wide applications Ideal for environments that require dependable door security, including homes, hotels, and offices. The lock is suitable for interior doors and other doors where simple, reliable access control is desired. Effortless setup Installation requires no tools or special skills. You can fit the lock quickly and securely with minimal effort, avoiding disruption to your space. Key benefits Reliable security with durable copper and stainless steel construction Easy access from outside with a key, fast operation from inside via a button Versatile for homes, hotels, and offices on a variety of doors Tool installation for fast setup and immediate use Key attributes Function: singlesided lock with outside key access and inside button control Compatibility: suitable for all types of doors requiring reliable lock security Material: copper and stainless steel for durability and corrosion resistance Performance: secure, quick lock/unlock operation with simple handling Use scenarios In a home, use on entry or interior doors where you need straightforward, trustworthy access control In a hotel, provide guests with secure room access while enabling staff to secure the room from the inside In an office, install on private offices or meeting rooms where easy, quick locking is beneficial for privacy and security