Description Would be delivered in one order - 1*glasses; with six Gas Flips; wide enough for ordinary glassesAuto-Darkening - Automatically darkens depending on the environment. Response time less than 1/10000SCharged automatically - Solar powered Li-Mi battery charged automatically. The battery is a sealed unit, please do not remove itPP ABS material - Lightweight, easy to assemble. The adjustable headband provides a comfortable, non-slip fit while leaving your hands free to work. Safe structure, 360 degree protection, make welders work easierUV/Infrared resistant - stepless adjustment from DIN9 to DIN11 (dark state) DIN3 (light state). UV transmissivity less than 0.00006%, IR transmissivity less than 0.003%. Operating temperature from -10-65. Viewing area 90*30mmProduct Description Electric Welding Goggles Response time less than 1/10000S Automatically charged solar-powered Li-Mi battery PP ABS material - Lightweight, easy to assemble DIN9 to DIN11 (dark state) DIN3 (light state) UV transmissivity less than 0.00006% IR transmissivity less than 0.003% Adjustable headband allows for a comfortable, non-slip fit while leaving your hands free to workSafe structure, 360 degree protection, make welders operate more easily The battery is a sealed unit, do not remove it Protect eyes from sparks and harmful radiation Auto-darkening filter automatically changes from light to dark when arc is struck, and back to light when welding stops Diseo de la cinta de la cabeza adjustable The multiple joints of adjustment con a breathable cojn alrededor so that the glasses adjust perfectly to the cabeza.Amortization to maintain the position Material PP ABS Lightweight, easy to assemble Adjustable headband allows for a comfortable, non-slip fit while leaving your hands free to work Measure What fits is best, please take a measurement before ordering Response time less than 1/10000S Before Welding After Transmissivity UV transmissivity less than 0.00006% IR transmissivity less than 0.003%