Honeywell Replacement Polycarbonate Cover Plates were designed for Honeywell HW100 and HW200 ADF Welding Helmets. This selection of replacement cover plates can be used inside or outside of HW100 welding helmets. They can also be implemented on an outside only basis for HW200 welding helmets. This package of Honeywell Replacement Polycarbonate Cover Plates contains five units.