This product is a universal key embryo for super D-level fingerprint locks and password locks, suitable for various intelligent door lock systems, such as smart door locks, electronic password locks, fingerprint access control, etc The key blank is made of thickened brass material, which has excellent corrosion resistance and wear resistance, and supports precision drilling and cutting processing. Can be used to copy and replace original keys. It is recommended to have a professional key matching agency accurately match the lock cylinder before installation to ensure compatibility. Contains 4 blank key blanks, suitable for backup use in households, hotels, apartments, and other scenarios, enhancing the convenience and security of the door lock system. The overall size of the key is 64.3x16.8x2.2mm. The specific size can be seen in the dimension diagram to determine whether it is suitable., Weight: 0.110231131 Pounds, Manufacturer: LT Easiyl