Deeply offset: 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. Exclusivefree-floating arms balance and stabilize the helmet while minimizing pressure points. Strip-proof ratchet head size adjustment provides small increment sizing. Model 3-C performs well in hot or cold: is unaffected by age: does not crack or break. In models where free-floating arms are impractical: unique mounting brackets are used.