Adjustable: The welding mask can be 180 degree flipped up and down, and the tightness of the headband can be adjusted during use.New headlight accessories are added to facilitate for operation in dark places (the lamp head may fall off, but it is easy to weld. If it falls, the customer can weld it by himself) Description: Automatic Dimming: Automatic dimming welding mask, protect your eyes, high-sensitivity detection head, sensing the speed of light change. The field of is very clear before dimming, and the welding position can be accurately positioned. When dimming, it will become dark instantly, filtering harmful light and protecting eyes from harm Fine Workmanship: Welding helmet welder mask is good ventilation, not stuffy, anti baked face, no light leakage Material: Using high quality PC material, it is more resistant to fall, high temperature, good heat insulation, prevents burns to the face, and has a longer service life, Weight: 1.02955876354 Pounds, Manufacturer: Zambuph