Colored Lens Set: The red lens is used to help maintain "night vision." General applications include: aircraft, boats, ships, military operations, police and security work. The blue lens helps penetrate through smoke and fog.
Mounting Brackets - Mount your Mag-Lite flashlight on a wall, in a vehicle, boat, airplane or home.
Lens Holder / Anti-Roll Device: This item both retains a colored lens and helps prevent the flashlight from rolling off irregular surfaces.