ABOUT THE MASK The design for this mask is made by conveniently integrating art and fighting sports to find a perfect answer for your fighting style in every battleground. Most importantly, it can protect your face and eyes from tiny BB gun plastic bullets. It is also resistant to the impact of hockey ball. Four layers of fiberglass resin reinforced by another two layers of specialty glass fibers make the mask reliably strong. ………………Testing We test every mask with shots from modified BB guns with higher 400 fps at 5 cm range. You can be sure that every mask is high-impact.