EdisonBright Fenix Filter Adapter, Blue AOF-S-BLUE with BBX3 Battery Case for UC40, PD35, PD12, UC35 Uses a toughened ultra-clear glass lens with anti-reflective coating that provides heat resistanceand maximum light penetrability Anti-roll design, easy to attach, easy to remove Made from PC-2805 plastic created by Bayer Material Science AG Improves night vision visibility This bundle includes EdisonBright BBX3 Battery Case