Features: 1. 304 stainless steel construction with multi-layer coating for durability and corrosion resistance. 2. Provides the highest level of residential security and supports entry function from both sides. 3. One side is locked and unlocked with a key, and the other side is turned the knob. 4. The surface is treated with brushed technology, beautiful and practical. 5. The lock core and the panel are integrated together, it is convenient to install. 6. It is normally used in front and rear doors, such as solid wood doors or steel wood doors. 7. The outer ring of the lock head can rotate freely and prevent prying. Specifications: Condition: 100% Brand New Item Type: Single Cylinder Lock Optional Color: Silver, Bronze Internal Components Material: Galvanized Steel Exterior Parts Material: Stainless Steel Locking Tab: Anti-sawing Locking Tab, Extension of 1 inch, using zinc alloy die-casting material, embedded in high-strength anti-sawing lock core Lock and key: 5-hole marbled copper lock core With 3 mechanical keys Applicable door direction: left -open/right- Open doors Applicable door thickness: approx. 35 - 50mm / 1.38 - 1.97in Lock body center distance: adjustable to 2.4 inches or 2.8 inches Function: open and close the single cylinder lock with a key or button Packing List: 1 x lock single cylinder 1 x lock body (adjustable center distance) 3 x key 1 x mounting plate 1 x package of screws 1 x manual