52mm UV Lens Filter Adapter Ring Mount for GoPro Hero 4 session Camera Allows you to attach 52mm filters and lenses to achieve your desired effect on your epic footage. EASY MOUNTING FOR FILTERS. It also allows you to mount UV lens, gradient filter lens, polarizing lens of diameter on to the GoPro Hero 4 Session HD video camera. PERFECTLY FITS YOUR SESSION CAMERA: The 52mm adapter is specifically designed for your camera for a tight and secure fit. No wobbling or cross-threading. STURDY AND DURABLE: Made out of premium Aluminum Alloy material by a CNC Aluminum machinery forming a sleek, sturdy, corrosion-resistant and anodic oxide finish filter adapter ring. Inclusions: Anodized Black Filter Adapter Ring + Plastic Glass Lens (Camera Housing and Filters are not included)