Multi Function Welding Mask Headgear:Head mounted Headgear band,it can be connected to external fan,can be fitted with headlamp/mask/earmuffs/helmet.Removable screw hole,can move the fixing hook Durable Material:Made of high quality Plastic material,very durable,and not easy to aging,black Adjustable design:Adjusting gear knobs on both sides and a control knob at back adjust to the most comfortable position according to different users,press and rotate to adjust the tightness Features:Forehead band provide a long time wearing,the headband is hollow design,breathable Portable for Carry:Compact size and light weight,easy to carry, Weight: 0.23809924296 Pounds, Manufacturer: Zanthicia