Pelican 770 Universal Helmet Light Holder fits most known helmet designs and functions with 17 different Pelican flashlights. Tough propolymer construction with brass inserts and stainless steel hardware. Fits Pelican model # 2300, 2320, 2330, 2340, 2340NVG, 2390, 2400, 2400NVG, 2400PL, 2410, 2410PL, 2420, 2430, 2450, 2460,3320, and 3330