Nitecore Red filter NFR25 with EdisonBright Battery Case for (25.4mm) P12, P10, SRT3, SRT5, EA1, EA2, EC1, EC2, MT21A, MT2C, MH1A, MH2A, MH1C, MH2C Made from PC2805 high-grade plastic for extreme durability and impact resistance Anti-reflective coating provides heat resistance and maximum light transmittance Highly resistant to extreme temperature Toughened ultra-clear glass lens This bundle includes EdisonBright Battery Case