(1) Ipaki ifite zipper zifunze, zishobora gukoreshwa kandi zishobora gufunga ibicuruzwa.
(2) Ubuntu bwa BPA nibikoresho byemewe na FDA.
(3) Ihagarika urumuri ultraviolet, ogisijeni nubushuhe biva hanze, bikomeza gushya igihe kirekire gishoboka.
