This is a set of neutral density (ND) and circular polarizing (CPL) filters for action cameras. It includes a set of 6 filters: CPL ND8 ND16 ND32 ND64 ND1000 I purchased these for my Osmo Action 4, but they are not necessary for my intended use, so I am selling them. I have only used the ND32 filter once; the rest are unused. Please check the condition in the photos and purchase only if you are satisfied. The shipping method may be changed between "Rakuraku Mercari便" and "Yuyu Mercari便". [Notes] * Cancellations after purchase are not possible. Also, returns are not possible to prevent fraud. * We are not responsible for any shipping-related troubles after the item has been shipped. There are no smokers or pets in the household. Thank you for your consideration. International buyers and proxy services are welcome. Search terms below: NEEWER CPL & ND Filter Set Compatible DJI Osmo Action4 CPL ND8 ND16 ND32 Polarizing Filter Neutral Density Filter