HIGH-SECURITY KEY BOX--This combination key box is made of robust steel and a zinc alloy body, offering excellent protection against hammer blows, sawing, and prying attacks. It is also highly resistant to water, corrosion, and weathering. It is particularly suitable for homes, garages, schools, gyms, warehouses, and other locations. EXCELLENT WATERPROOFING--The combination key box is equipped with a black cover, which effectively protects the dial from dust, acid rain, ice, and snow, making it more robust and durable. The compact design makes it look like a weatherproof outdoor outlet; no one will notice it. This key safe can be installed on the wall/door or in other discreet locations such as a closet to keep your keys more secure. LARGE CAPACITY - External Dimensions: 11.5 x 8.5 x 5.5 cm / 4.53 x 3.35 x 2.17 in. Internal Dimensions: 11 x 8 x 3 cm / 4.33 x 3.15 x 1.18 in. The secure key box can be used indoors or outdoors. It offers ample and highly secure internal storage space for