K&F CONCEPT Variable ND Filter ND2-400 (49mm) and a hinged flip ring set. I mainly used this for video shooting. The rotation is smooth, and I have never felt any problems during use. Using the flip ring, you can flip up the ND filter with one touch, which was convenient when switching between indoor and outdoor shooting. ■ Condition ・There are scratches due to use. ・There are no critical scratches on the glass surface (as far as I can see). ・Good working condition. ※This is not a professional inspection. Please understand that this is a used item before purchasing. ■ Included Items ・Variable ND filter (49mm) ・Flip ring ■ Other ・Instant purchase OK ・Returns are not accepted to prevent product switching. This is a set sale, so it is a better price than buying the items separately. If the conditions are acceptable, please purchase as is.