Trace Element Certified Marker, Black, Fine Point Tip, 12 Count ORS NASCO allows mask to hang down

Trace Element Certified Marker, Black, Fine Point Tip, 12 Count ORS NASCO allows mask to hang down allows mask to hang down around the user's neck when not in use Soft foam nose cushion for added comfort and no pressure points Exclusive Dura Mesh® shell resists collapsing in heat and humidity SoftSpun® lining for increased comfort and durability Longer life than thoriated electrodes Non radioactive additives Can be used in both AC and DC processes Excellent arc starting and stability Reduce amperage by 5o recalibrate from other tungsten aeronautic and ship building industries Each marker is identified with the batch number of the ink Writes on most surfaces electronic