Pro Solar Welder Mask Auto-Darkening Welding Helmet Arc Tig mig grinding Brand new and durable High strong materials and fire retardant Start work immediately Fashion app Mask material: PP Weight: 1 LBS Light states: DIN 4 Dark states: DIN9~13 free adjustable Cat Sensitivity(welding based on current size): adjustable: low/high Battery: lithium battery + solar ce Return guaranteed within 30 days Buyer pays for return shipping + 15% restocking fee