This is a under sea diving filter set with 52mm adapter ring for GoPro Hero 3+ with waterproof housing

Three pieces filters (Red + Yellow + Purple) fit any camera lens with a 52mm filter thread

The 52mm adapter ring is specifically designed for your camera for a tight and secure fit

ND2 filter can reduce the intensity of light without appreciably changing its color

The filter carrying pouch has clear inner for quick and easy access