Zomangira zamatabwa zimapezeka kwambiri m'malo onse am'nyumba ndi m'masitolo a hardware ndipo zidapangidwa kuti zigwirizane ndi matabwa awiri.Amakhala ndi ulusi mbali ya njira ndiyeno amakhala ndi shank yosalala pamwamba.Izi zimathandiza kuti zomangirazo zikhale pamalo ake.Iwo ndi otsika mtengo ndipo amabwera mitundu yonse ya diameter ndi mitu yamutu.