This is an ND4 filter for shooting with a 1/4 reduction in light. Made by Kenko. φ55mm. There is one piece of dust that is fixed in place, and there is also some dirt compared to a new item, but I think it will be fine for general use. Please consider purchasing with the understanding of the above. - Filter Type: ND4 Filter - Color: Black - Material: Glass Thank you for viewing.