Features: 100% brand new and high quality. Strong and fire retardant material, durable and practical, anti-aging. High definition protective filter make you can see the welding conditions clearly. Welding luminosity is soft and comfortable, striking the arc the observing window darkens immediately. Permanent UV/IR protection, sensitivity and delay time can be adjustable. Specifications: Masks Materials: PP Color: As picture shows View Area: 9.6*3cm Battery: Lithium battery+Solar cells(No battery change required) UV Protection: 16 levels Response Time(Bright to Dark): Sensitivity(Welding based on current size): Low/High Package Include: 1x Welding Helmet 1x User Manual Note: Please allow minor deviation due to manual measurement. The colors may be a little difference for the different monitor display.