Nomadic Gear Head Strap Camera mount for Gopro Hero5 Hero4 Hero3+ Hero3 Hero2 Hero Camera Waterproof head-strap camera mount that works with any GoPro camera including GoPro Hero, Hero 2, Hero 3, Hero3+, Hero 4, Hero 4 Black, Hero 4 Silver, Hero 4 Session and Hero 5 One size fits all; fits directly on head or over most helmets Ideal for hands-free filming when you want a point-of-view angle Adjustable nylon straps with non-slip rubber inserts; polycarbonate buckles Measures 6 to 7 inches in diameter; stretches to 12 inches in diameter