The body is made from solid brass with the inner components being produced from noncorrosive materials Shackle made from Brass Precision pin tumbler cylinder Security Level 1525mm Level 33035mm Level 44045mm Level 55070mm Level 6 Overall width 16mm Overall height 32mm Overall depth 10mm Shackle width 80mm IDShackle height 12mm Shackle Dia 30mm