Features: It can effectively prevent the petard, welding slag, dust and other objects invasion to burn the neck and face. The lens with flip-open cover avoids frequent putting on/off to check welding point's position, which makes welding work more convenient and safer. The mask adopts premium material and sponge viewing ares frame, durable, sweat absorption, heat resistant, breathable, very comfortable to wear. With the hook&loop on mask's back for quick, convenient wearing and size adjustment. Ideal accessory to provide full protection for welding workers. Specification: Condition: 100% Brand New and High Quality Material: Cow Leather, Sponge, Plastic Lens Color: Sun Yellow+Black(Shown as pictures) Helmet Height: Approx. 29cm/11.42inch Helmet Thickness: Approx. 1.4mm/0.55inch Head Circumference: Approx. 60cm/23.62inch Lens Dimension(LxW): Approx. 9 x 4cm/3.54 x 1.57inch Weight: Approx. 410g Packing List: 1 x Welding Helmet with Lens Notes: All size datum are measured by hand, please allow small deviations. The actual item's color may be slightly different from the pictures shown on web due to different monitors. We appreciate your understanding. The lens on the mask do not have auto darkening function.