The body is manufactured from solid brass & is sealed with a shock absorbing material designed to protect the cylinder against water & dirt It features a precision steel tumbler cylinder with a stainless steel shackle Where to use it Medium security requirement in severe weather & environmental conditions Ideal for securing to vehicles & boats Overall width 53mm Overall height 73mm Overall depth 28mm Shackle width 205mm IDShckle height 245mm Shackle Dia 8mm