Fast and efficient protection for your facepiece. Facepiece guards protect your facepiece from the scratches and dings that damage them overtime. Their thick enough to protect and thin enough to easily stuff into your bunker pocket. Their held on by powerful magnets that will secure the guard on your facepiece until the moment you need to mask up. Then, just rip it off and get to work! FAQ and Concerns: 1. Can they be used for Blackout Training? Yes 2. Why do they fit a little Loose? The Magnets connect to the Steel clips that hold the harness. The clips swivel so it will be impossible for the Guard to fit tightly.