NiSi 100mm Aluminum Filter Holder V2-II can be Used on 52mm,55mm,58mm,62mm,67mm,72mm,77mm,82mm Lens Through Adaptor Rings (Adaptor Rings not Included) Hold 2x 100mm wide filter at the same time Made from aviation-grade aluminum with single element processing by CNC machine With matte black frosted finish on the surface All of the screw accessories are made of copper and with black nickel plating. Rotates 360