XCSOURCE&reg; 8 PCS Graduated ND Filter Set(ND2 ND4 ND8 ND16 G.ND2 G.ND4 G.N8 G.ND16)+ 9 Metal Adapter Ring (49mm/52mm/55mm/58mm/62mm/67mm/72mm/77mm/82mm)+ Holder For Cokin P LF291 8pcs Neutral Density ND Filter SetND2 ND4 ND8 ND16 G.ND2 G.ND4 G.N8 G.ND16. 9 Metal Adapter Ring (49mm/52mm/55mm/58mm/62mm/67mm/72mm/77mm/82mm) Control light and colour directly on your raw images at the time of shooting. Keep the quality of your images without excessive post production work. Compatible with Cokin P series.