General description The Secure Key Box features a robust 4-digit combination lock that offers high security with 10,000 possible combinations. Constructed from double-layer rust-proof zinc alloy, it is designed to withstand hammering, burning, and sawdust, ensuring strong anti-theft protection. The key box is equipped with a weather-resistant sliding cover that protects the combination dial from the elements. Technical specifications Combination lock: 4-digit with 10,000 combinations Internal dimensions: 90mm x 70mm x 28mm (L x W x D) Storage capacity: Holds up to 5 house keys or 3 large keys, as well as car dealership keys and room cards Installation Includes all necessary installation accessories for both peephole and wall installation Bilingual instructions in Chinese and English for easy step-by-step installation Usage Suitable for various locations including garages, gardens, classrooms, factories, companies, shops, universities, dormitories, and holiday homes Provides easy