Ideal for Freediving & Spearfishing: Low Volume Design Compatible with All GoPro Models Secure Thumb Screw: Embedded Nut Prevents Loss Easy Ear Equalization: Large, Accessible Nose Pocket Comfortable Fit: Super-Soft Matte Silicon Skirt Safety First: Dual Tempered Glass Lenses Included Accessory: Soft, Quick-Drying Travel Bag Adjustable Fit: Buckle Swivel for Comfort & Seal Certified Safety: CE Compliant Design Quality Assurance: 2-Year Limited Warranty OCTOMASK's built in GoPro Camera mount offers divers a great way to shoot incredible video while diving in addition to keeping your hands free. Because let's face it, between checking dive computers or holding dive lights, you've already got your hands full. Works with ALL GoPro Models! The OCTOMASK features safety tempered lens, and a low volume design that helps keep the mask close to the face for great visibility, while the super-soft silicone helps ensure a great seal. This mask fits nearly everyone!