Kev tiv thaiv qhov muag tsom iav tsom iav tsom iav tiv thaiv kev nkag mus ntawm cov kab mob qaub ncaug, plua plav, paj ntoos, thiab lwm yam. Kev tsim kho qhov muag ntau dua, qhov chaw loj dua, sab hauv hnav ntau dua.Ob chav sided anti-fog tsim.Adjustable elastic band, band's adjustable qhov ntev tshaj plaws yog 33cm.