uxcell&reg; 55mm Adjustable Fader Neutral Density ND Filter ND2-ND400 for DSLR Camera Lens Product Name : ND Filter;Material : Aluminum, Plastic;Adjustable : ND2-ND400 Male Thread Diameter : 55mm / 2.2";Female Thread Diameter : 57mm/2.2" Total Size : 63 x 10mm/2.5" x 0.4"(D*T);Box Size : 79 x 70 x 13mm/3.1" x 2.8" x 0.5"(L*W*T) Filter Color : Black;Case Color : White Net Weight : 38g;Package Content : 1 x Fader ND Filter,1 x Case