K&F CONCEPT NANO-B Series Variable ND 2-400 77mm K&F variable ND filter, 77mm. I am selling this as I no longer use it after using it a few times for photography. [Condition of the item] No noticeable scratches. I think it's in relatively good condition. Comes with a dedicated plastic case, outer box, three microfiber cleaning cloths, and instruction manual. Everything in the photos is included. Thank you for your consideration.