72MM Double-Threaded 3 Piece Neutral Density Filter Kit for Canon, Nikon, Kodak + MORE! Includes: ND2, ND4, and ND8 Filters!! New!ND2 + ND4 + ND8 72MM Neutral Density Filter ND2 + ND4 + ND8 Size: 72mm * Material: High-quality Plexiglas.