The Master Lock 5400EC Black Key Lock Box is a secure storage solution for up to 5 house keys. This large black metal portable lock box features a combination lock mechanism with a 35mm shackle size. It is water-resistant and weather-resistant, making it ideal for outdoor use. With a security rating of A and a cylinder barrel fixture type, this key lock box provides reliable protection for your keys. The product also includes a pouch for easy transportation and weighs 1 pound, making it convenient to carry around. Free express shipping in the United States ensures you receive your product quickly.