Features1. Brand new and high quality 2. Need a filter adapter to install onto your HERO camera 3. Some simple techniques and some basic filters can make a huge difference in your sunrise and sunset photos 4. Color lens provide color and contrast enhancement, enhance the color and contrast, color saturation in general 5. For filter diameter 52mm, suit for GoPro HERO 4 / 3+

http://olla.gr/52mm-round-circle-color-uv-lens-filter-for-gopro-hero-4-3-red/