Neewer Underwater Waterproof Camera Housing Case & Filter Kit for GoPro Hero4 and Hero3+ Cameras: (1)Waterproof Housing Case + (1)52MM Adapter Ring + (3)52MM Filters (CPL, ND4, UV) Kit includes: (1)Waterproof Camera Housing Case + (1)52MM Adapter Ring + (3)52MM Filters (CPL, ND4, UV).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. Three pieces 52MM filters(CPL, ND4, UV) feature all-glass optical components, and are designed specifically to fit the lens port of the GoPro Hero 4/3+ Underwater Housing and Skeleton Housing. CPL Filter (Circular Polarizer) is great for removing unwanted reflections from non-metallic surfaces such as glass or water. ND4 Filter (Neutral Density) reduces the amount of light reaching the film without affecting the color. UV filter reduces haze and improves contrast by minimizing the amount of ultraviolet light. 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.