Color: Black Material: Aluminum alloy + optical glass Features: This avariable neutral density filter is the used most of flexible in the ND filters, you can at between ND2-ND400 to arbitrary rotation. Fit long exposure during the day or shooting the sun and highlight objects. Box: Hardcover Wooden box Suitable for 77mm lens Package included: 1 x 77mm ND Filter Product Dimensions: 7.7 x 7.7 x 1.1cm, Weight: 68g Package Dimensions: 10.2 x 10 x 2.8cm, Weight: 148g