Custom fit Replacement Headgear for F400, F500 Series no checkout Click in and click out design eliminates Click in and click out design eliminates time consuming hand threading and ensures pressure tight connections Color coded for fast Features an elastric headstrap and visor clip that attaches to the brim of your hat 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