Joyutoy Brown cowhide Split Leather Welding Helmet Hood with Auto Darkening Filter Lens Face Shield Hood Color: Brown, View size: 90 X 30mm(3.54 X 1.18);Auto Darkening Lens: Solar Auto Darkening Welding Lens Filter,with solar charge function and full automatic ON/OFF,very convenient and efficient. Material: High quality cowhide Leather; Filter dimensions: 108mm X 50mm X 6mm; Power supply: Solar cell and lithium batteries, No power consumption, No need to change battery, absolutely conforms to the safety standard Heat resistant temperature: 130; Variable optical response time: 4/10000s; heat and flame resistant mask Recovery time: 0.2s; Auto-Darkening welding helmet are designed to protect the eyes and face from sparks, spatter, and harmful radiation under normal welding conditions Leather Helmet Mask: Provides easier access and is more comfortable when welding in close quarters and tight spots. Can effectively prevent the petard, welding slag, dust. Note : If you have any questions about the use and installation of the product, please contact us for the freely , we will promptly reply to you