Features: brand new and high quality Delay the for key to adjust the for time from black to light after welding. This welding argon arc welding solar automatic charging, without the use of power, is practical and environmentally friendly. The welding helmet lens has a clear window and a wide field of watching, which can quickly and reliably filter out welding arc light. This welding lens set is easy and safe to operate, and it can be used with different styles of welding masks. Using this welder mirror group can be well protected at work to prevent occupational diseases. Specifications: Material:Plastic Size:as the Picture Show Package Includes: 1 x Auto Welding Lens note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.