Igikombe cyamazi ya silicone nigikombe gishobora gukubwa inshuro nyinshi.Umunwa wigikombe gikozwe mubyuma bidafite ingese, kandi umubiri wakozwe na silika gel, iroroshye kandi ikomeye, ishyigikira kwanduza ubushyuhe bwinshi, kandi urukuta rwimbere rwigikombe rworoshye kandi rworoshye kurwoza.Ikizamini cyihohoterwa gishobora gukubwa inshuro nyinshi no gukoreshwa, 1.3cm gusa nyuma yo kugundwa, byoroshye gutwara.Birakwiriye cyane mubikorwa byo hanze nko gutembera no gukambika.
