20610 Fort Knox® Bank These safes are made of heavy gauge steel, with double coating inside and out to make them rustproof and childsafe. Each has its own individual two number combination and is packed in assorted bright colors. Item Size: 6 1/4"x6"x4 1/2" Packed 12 ea., 19.5 lbs., 1.6 cu. ft. Shpg. ctn. size: 14 3/4"x13 3/4"x14".