Icyegeranyo Cyo Kwisiga Igishushanyo cyumurongo wo kwisiga wa Kjaer Weis gitandukanya ishingiro ryimyambarire yabagore mubice bitatu byingenzi bikoreshwa: iminwa, umusaya n'amaso. Twashizeho ibishushanyo mbonera byerekana indorerwamo bizakoreshwa mu kuzamura: ubunini kandi burebure ku minwa, binini na kare ku matama, bito kandi bizengurutse amaso. Ikigaragara ni uko compacts swivel ifunguye hamwe nu rugendo rushya rwuruhande, ruguruka nkamababa yikinyugunyugu. Byuzuzwa rwose, ayo masezerano abikwa nkana aho kuyakoresha.