Omax cokin Type P Series Filter HolderProduct Description: Package include : cokin type P series filter holder cokin type holder is used for setting the filters onto the camera. perfect for cokin p series Color: Black How to use: screw the ring Adapter onto your lens. slide the filter holder on the ring Adapter until it clip in place. slide the filter into one of the filter holder slots which is depended by your filter's size. Please note: this is an imported product and not cokin brand,