Custom fit Replacement Headgear for F300 Series no checkout Designed to efficiently conduct current Designed to efficiently conduct current through detachable type connection Cam action design allows lock in with a twist and pulls the two halves tightly together Metal parts are precision machined from heavy brass extrusion The smooth marking chalk is ideal for bright temporary marks Coated for clean handling pliable headband fits head contours comfortably Overhead band with multiple adjustments helps position the glassholder for the best view of the weld and a comfortable working position Exclusive “free floating” arms balance and stabilize the helmet while minimizing pressure points Strip proof ratchet head size adjustment provides small increment sizing Deeply offset