These are cast from marine grade 316 Stainless Steel and polished Land Rover Defender bulkhead mounts.
You are purchasing 2 hinges, enough to replace the two bulkhead mounts. These also come with bulkhead mount fixings and gaskets (YRM Part numbers 1011 & 1923)

YRM1011 Stainless Steel Fixings are included and consist of
6no M8 A4-80 x 50mm Hex Head Bolts (Full Thread)
6no M8 A4 Spring Washers
6no M8 A4 Flat Washers