Don't let anyone tell you it's impossible to mount filters on a HERO3+ or 4 camera. We took our professional WonderPana filter system, and miniaturized it to fit everyone]s favorite sports camera; the HERO3+ and HERO4 . When you bolt the WonderPanaGo onto your HERO3+ or HERO4 case, you're adding a sturdy all-metal mount for our filter system. Your case remains waterproof and sealed against the elements, and now you can add our professional grade filters. The kit includes an ND8 filter for shooting in bright conditions, Circular Polarizer, UV protective filter, a custom lens cap, and leather case to store the filters. The WonderPanaGo is the flagship of our exciting new GoTough line of all-metal action camera accessories and mounts. Note: HERO3+ and HERO4 Housing Not Included.