Super performance for little money.
The ND filter comes in a very good quality transport box.
Quickly and easily you can adjust the degree of darkening so that it gets everyone.
I had to try it immediately and was thrilled.
I can only recommend the ND filter.

As a full time filmmaker I own several K&F filters. They are cheap but have a solid performance. Especially fir your output medium is Social Media or even TV. (I would not use them for Film related projects).
One of the problems this ND filter solves is especially when you using a Matte box and you have the ND attached to it. It is really hard to "feel" the filter without looking at it.
I have smudged the lens with my sticky fingers several times because I can't really feel the ring while holding the camera.
This filter has to nice handles that you can tactically feel easily when using a matte box.
Great addition for my camera bag.

Does the job: protects the lens of the lens. Matte appearance and a bit rough feel, but it's just an aesthetic detail.

I've seen various films that noted the use of diffusers. I really compared a lot of black matte filters. This one is perfect. I get the softening without noticing it. This is really a high quality filter. I am very happy with it.

The camera stand is made of sturdy material and has a high quality of matte surface!! The most impressive me it is the camera stand has multiple adjustable tight handles that allow me taking product pictures from a wide angle.

Great performance for little money. The ND filter comes in a very good quality transport box. You can quickly and easily adjust the degree of darkening so that everyone can do it. I had to try it immediately and I was amazed. I can only recommend the ND filter.

I bought it for its minimalism. All matte black and I love it. With my Nikon Ai F lenses it suits luxury

Finally found an ND filter which can be installed inside the Smallrig lightweight matte box 2660.
I did have to remove the holder frame to make it fit. This can be done by carefully pulling appart the frame sides with the lips. In doing so you can op out the filter while keeping the frame intact.
Filter quality seems to be ok and it comes with a very well designed holder with an extraction ribbon which avoids having to touch the surface of the filter when taking it out.