AmazonBasics Head Strap Camera Mount for GoPro Waterproof head-strap camera mount; compatible with all GoPro cameras including GoPro HERO6, GoPro HERO5 Black, HERO5 Session, HERO4 Black, HERO4 Silver, and HERO Session 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