Neewer Underwater Waterproof Camera Housing Case & Filter Kit for GoPro Hero4 and Hero3+ Cameras: Waterproof Housing Case + 52MM Adapter Ring + 52MM CPL (Circular Polarizer) Filter + Lens Cap Kit includes: (1)Waterproof Camera Housing Case + (1)52MM Adapter Ring + (1)52MM CPL (Circular Polarizer) Filter + (1)Lens Cap. The kit can reduce light bouncing off objects to capture more detail color. The Waterproof Camera Housing Case is compatible with GoPro Hero 4/3+ Cameras. Offers a waterproof and shock-resistant shell. Delivers maximum image sharpness above and below water. The waterproof shell anti-surf pressure will not affect your movement and photographic effect. 52MM CPL Filter (Circular Polarizer) is designed specifically to fit the lens port of the GoPro Hero 4/3+ Underwater Housing and Skeleton Housing. Great for removing unwanted reflections from non-metallic surfaces such as glass or water. 52Mm Adapter Ring is easy and convenient application and removal. Allow you to mount UV lens, gradient filter lens, polarizing lens of diameter 52mm on to the GoPro Hero 4/3+ Cameras.