Product benefits Durable, reliable construction: Built from durable materials to provide longlasting security for your doors. with confidence knowing the lock is designed for regular use. Enhanced theft protection: Features a thickened antitheft solid latch that improves resistance to forced entry, giving you stronger protection compared with standard latches. Simple control options: Singlesided design that locks and unlocks with an external key or with the internal rotary button, so you control access from either side as needed. Quick, straightforward installation: Designed for easy and fast installation with no complicated steps, so you can fit the lock without professional help. Key attributes Function: Singlesided door lock with key; internal rotary button for on/off from inside and key operation from outside. Security component: Thickened antitheft solid latch for improved resistance to tampering and forced entry. Material and performance: Made of durable materials to ensure reliable, longlasting performance under daily use. Compatibility: Suitable for a variety of standard doors including front doors, bedroom doors, office doors and other interior or exterior doors in residential, commercial, and hospitality settings. Practical use scenarios Home entry: Install on an apartment or house front door to add an additional layer of security with key access from outside and quick internal locking. Hotel or guest room: Provide guest privacy and secure access for hotel or shortterm rental rooms using the internal rotary button and external key. Office and utility rooms: Secure offices, storage rooms or supply closets where controlled access is required; the solid latch resists unauthorized entry. Why choose this lock Balances security and convenience with a robust latch mechanism and simple key/rotary operation. Versatile compatibility makes it a practical choice for homes, hotels and offices. Easy installation and durable construction help ensure dependable protection over time.