Features: Provide a fashion and modern look to your door while ensuring perfect security. Features a locking tongue margin for added security, preventing unauthorized access. Make from Stainless Steel, Zincs Alloys, Iron, this lock offers durability and longevity for your door security. Suitable for door with a thickness of 35-50mm/1.38-1.97inch, ensuring a secure locking mechanism. Great for replacing lock Cores parts, this lock is a good solution for door lock maintenance. Specifications: Material: Stainless Steel, Zincs Alloys, Iron Margin: 60mm/70mm(Optional) 60mm total length: about 50mm/1.97inch 70mm total length: about 60mm/2.36inch Package Includes: 4Pcs Locking Tongue note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.