This product is a complete, integrated combination lock set that cannot be disassembled. Ensure to remove all old components and replace them with our parts for optimal functionality. Key Features: - Robust Security: Constructed from high-grade zinc alloy, this lock is strong, durable, fire-resistant, and corrosion-resistant. It features a solenoid lock with two override keys, providing robust physical protection against forced entry. It also includes three fault code locking modes for added security. - Standard Dimensions: The lock features a round front panel measuring 95mm (3.74 inches) and weighs 6.35 ounces. Please verify compatibility with your box dimensions before purchasing by referring to our product instruction video. - User-Friendly Installation: Program up to 3-8 digital codes, with an intuitive interface that uses three different colored lights to indicate status. To replace the battery, simply remove the keypad face by pressing the tab counterclockwise. - Versatile Applications: Ideal for a variety of settings, our digital keypad security solenoid lock replacements are suitable for homes, lock boxes, gun safes, hotels, cabinets, and slots. Installation Advisory: We recommend that individuals who are not technicians or professional locksmiths refrain from attempting installation. If you encounter any issues, please contact us for one-on-one assistance to resolve your concerns.