The converter is made by buying a circular celluloid or plastic 8-inch diameter disc on which the compass markings are engraved.
Utshintsho lwenziwa ngokuthenga iplastiki etshayo esetyenziswa ekwenzeni izinto zokudlala ejikelezayo okanye ii-intshi ezisibhozo zecwecwe lesinqumla sangqa apho uphawulo lwesalatha-mbombo lushicilela khona.