This fully adjustable Head Strap and QuickClip enables you to attach your GoPro to a variety of head-mouting options of all sizes. It can be worn directly on your head to capture footage from a headlamp-like perspective or can be worn over a helmet during more dangerous pursuits. :: Unisex > Actions Camera. Includes: Head strap. QuickClip and thumb screwHead strap can be worn directly on your head like a headlamp or over a helmetFully adjustable to cater for all sizesQuickClip allows you to attach your GoPro to a backwards baseball cap or other\n 3mm - 10mm thick objectsQuickClip provides ultra-compact. low-profile mounting Size: one size.