Zosonkhanitsa za Marra zimakopa chidwi kuchokera kuzinthu zachilengedwe zomwe zimapezeka m'chilengedwe. Mizere yamakono, yoyera ya chidutswa chilichonse imapangidwa mosamala kuti iwonetse kuphweka ndi kuphweka kwa kunja. Zopangidwa ndi chitonthozo m'maganizo, chosonkhanitsachi chimakhala ndi mapangidwe apamwamba omwe amapereka chithandizo chosayerekezeka ndi kupumula, mapangidwe a ergonomic amatsimikizira kuthawa komwe okhalamo amatha kumasuka ndikutsitsimutsanso kalembedwe.