Primary Function: Izibuko Zelanga Book Text: I-No. 2 iwuhlobo lwezibuko zelanga ezaklanyelwe ukuqina nokunethezeka. Uhlaka lwenziwe ngensimbi engagqwali ye-Japan ecolekile kakhulu enenkumbulo yesimo eyi-0.5 mm, ebunjwa ngokugoba nokusonga ngaphandle kwamajoyinti ashiselelwe noma izikulufo. I-hinge yokukhiya engenaso isikulufo elindele ilungelo lobunikazi ithatha indawo yezikulufo zendabuko namahinge e-barrel, ukuze ama-hinge angakwazi ukuxega nezikulufo zingakwazi ukuwa. Uhlaka lusinda amagremu angu-18. Amalensi e-polycarbonate akwazi ukumelana nokushayeka futhi avimba ukukhanya kwe-ultraviolet. Ama-nose pad nezihloko zezingalo ezenziwe nge-silicone yezinga lezokwelapha awubangeli i-allergy.