Fotga 4x4 100mm Square Filter Set 3pcs Square Neutral Density Filter ND2 4 8 + 3pcs Gradual Neutral Density Filter ND2 4 8+1pcs Filter Holder +1pcs Clean Cloth +1pcs 6-slots Filter Case + 1pcs Adapter Rings (77mm) for Cokin Z Series and Matte Box Filter Tray (Adpter Ring 77mm)