I purchased this with acepro2, but I have no plans to use it, so I'm putting it up for sale. Although it's unused, it has been opened and stored, so there are minor scratches on the plastic case. The following was generated by AI: Insta360 ND filter set, with 4 filters to accommodate various shooting conditions. - Set Contents: ND Filter Set (4 filters) - Brand Name: Insta360 - Filter Type: ND Filter - Package: Comes with the original box Thank you for viewing.