EXCELLENT PERFORMANCE: The wall-mounted house key lock box is waterproof and rustproof with a sliding guard that the digital dial from inclement weather and allows for easy wall mounting. IMPROVED SECURITY: Key hiders offer 10,000 combinations so you can choose the unique combination you want that is not easily cracked, providing you with a secure key solution. HIGH STRENGTH MATERIAL: The outdoor key lock box is made of strong and tough aluminum alloy, which is extremely hard, tough and impact resistant to any crushing, sawing, or prying attempts. RELIABLE LOCK CYLINDER: The key lock box is opened by a 4-digit code, anti-decoding design for high security, and a reinforced hardened steel lock cylinder for durability and damage resistance. WIDE APPLICABILITY: The outdoor key lock box is suitable for indoor and outdoor use to keep keys for homes, vacation homes, garages, emergency entrances and real businesses. Suitable for cleaners, workers, pet caretakers, seniors, and children.