Zovala zopindika pakamwa zimapangidwa ndi galasi lapamwamba la borosiliate.Mapangidwe a pakamwa awa ndi okongola kwambiri ndi kuluka kwake.Kukwanira bwino m'manja, kosangalatsa komanso kosangalatsa chifukwa cha mawonekedwe ndi kulemera kwake.Zitha kuphatikizidwa ndi ma hoses onse a silicone ndi nsonga zapakamwa za pulasitiki.