Made of ABS and aluminum alloy material, rust resistant, sturdy and a reliable key safe box. There is no need to put your keys under the carpet or flowerpot for hiding after you bought this key lock box. It is suitable for indoor outdoor use. Features - Color: Black. - Material: ABS+Aluminum Alloy. - Size: 10.50X6.50X4.80cm/ 4.13X2.55X1.89inch. - Made of ABS, steel and aluminum alloy material, rust resistant, sturdy and a reliable key safe box. - The portable key security locker box provides a large internal space for holding up multi keys. - Screw the key lock box on wall or door with the mounting hardwares, no power source required - Suitable for daily activities, friends, emergency entry, and real business, etc. - Also great for the garage, garden, classroom, factory, company, store, college, and etc. Package list: 1 3 x expansion tubes 1 lock box 3 x screws 1 x specification 1 x password change