Izinciphisi ze-Orifice sisixhobo esisetyenziselwa ukulawula ukuhamba kolwelo, esidla ngokusetyenziswa kwiintloko zokutshiza zeebhotile zesiqholo okanye ezinye izikhongozeli ezingamanzi. Ezi zixhobo zihlala zenziwe ngeplastiki okanye irabha kwaye zinokufakwa kwindawo yokuvula intloko yokutshiza, ngaloo ndlela kuncitshiswe i-diameter yokuvula ukunciphisa isantya kunye nomthamo wolwelo oluphumayo. Olu luyilo lunceda ukulawula inani lemveliso esetyenzisiweyo, ukukhusela inkunkuma egqithisileyo, kwaye inokubonelela ngesiphumo esichanekileyo nesifanayo sokutshiza. Abasebenzisi banokukhetha imvelaphi efanelekileyo yokunciphisa ngokweemfuno zabo ukufezekisa umphumo ofunekayo wokutshiza ulwelo, ukuqinisekisa ukusetyenziswa okusebenzayo kunye nexesha elide lemveliso.