Made up of Polycarbonate Material reinfoced with precision work. Ergonomics design without metal accessories. Suitable for protection during examination, and treatment in medical institutions, blocking splashing of body fluids and blood, and can also be used for daily protection. The face frame and nose pad are made up of medical grade PVC OR silicon, comfortable to wear. Double-sided anti-fog coating can prevent fogging on glasses effectively. The 180 degree large window design provides a wider view.