58mm Filter Flip Up Adapter Ring for GoPro Hero 3+, Hero 3 Plus, Hero 4 Camera Standard / Skeleton Housing Compatible with GoPro Hero 3+ / Hero 4 standard housing and skeleton housing The filter adapter will attach to the outer housing around the lens and it will allow you to attach 58mm filter to it (filter is NOT included) Flip up design allows users to quickly add or remove the filter for land and water use or as color drops off with depth Made of lightweight durable plastic Package included: Filter Adapter x 1 (GoPro camera and housing are NOT included); Free touch screen stylus pen is included (Random color shipped)