This Polar Pro Magenta Glass Dive Filter for GoPro HERO3+ Housing is the ultimate magenta filter for the GoPro Hero3 Camera. It provides razor sharp color correction for green. It simply snaps on to the Hero3 waterproof housing, and can be removed in less than a second. The filter is made out of glass for super sharp optics in addition to being extremely scratch resistant. This filter’s optics is better than any other magenta filter on the market and it is less expensive.