SureFire Diameter Bezel 1.0in Filter Ror Flashlights Blue. Hunters use the SureFire red filter to avoid spooking game during predawn hours - deer see poorly in the red color spectrum. Sure Fire Red Filter F 05 - 1" Bezel is also useful for close range non-tactical applications - such as map reading -- as SureFire F-05 Red Filter for Executives Series Flashlights reduces the intensity of light output. Specifications for SureFire Diameter Bezel 1.0in Filter Ror Flashlights: Manufacturer: SureFire Bezel Diameter: 1 in Quantity: 1 Condition: New Features of SureFire Diameter Bezel 1.0in Filter Ror Flashlights Fits 1-inch diameter bezels Provides secondary protection to flashlight window Slips over bezel Package Contents: SureFire Diameter Bezel 1.0in Filter Ror Flashlights SureFire F06: Diameter Bezel 1.0in Filter Ror Flashlights Blue