Reliable Lock Core: 4-digit password opening with anti-decoding design, high security. Excellent Performance: The key storage locker is not easy to decode, safer and more reliable. Security Enhancement: The locker offers 10,000 combinations, so you can choose the unique combination you want. Wide Applicability: Suitable for indoor and outdoor use, storing keys for families, vacation homes, garages, emergency entrances, and real estate stores. Suitable for cleaners, workers, pet sitters, the elderly, and children. Note: The data are all manually measured, please allow an error of 1-3 cm. Due to differences in light and display, there may be color differences, please refer to the actual item received.