With Polypropylene impact resistant shell and come with a strong, flexible nylon ratchet harness.
Auto-darkening filter lens have high speed switching time (0.1ms) and 3 light shades.
The outer dark shade can be adjusted from 9 to 13.
The active viewing area is 98 x 25 mm and power supply by 2 pcs of CR2032 3V.
Compliance: ANSI Z87.1