The body is made from solid brass with the inner components being produced from noncorrosive materials Shackle made from Stainless steel Precision pin tumbler cylinder Security Level 1525mm Level 33035mm Level 44045mm Level 55070mm Level 6 Overall width 50mm Overall height 77mm Overall depth 18mm Shackle width 28mm IDShckle height 29mm Shackle Dia 8mm