This is the GoPro Head Strap Mount + Quick Clip for ALL HD Hero Cameras Features: Head Strap is fully adjustable to fit all sizes Head Strap can be worn over a helmet or directly on your head in a headlamp-like position QuickClip allows you to attach your GoPro to a backwards baseball cap or other 3mm to 10mm thick object QuickClip enables ultra-compact, low-profile mounting Warranty: 1 Year Compatible with: All GoPro Cameras Includes a Head Strap and a QuickClip for a variety of head-mounting options. Fully adjustable to fit all sizes, the Head Strap can be worn over a helmet or directly on your head to capture footage from a headlamp-like perspective. The QuickClip enables ultra-compact, low-profile mounting, and can be used to attach your GoPro to a backwards baseball cap or other 3mm to 10mm thick object.