Cavision FTG4X565SND06 is a 4X5.65" 0.6x Solid Neutral Density Glass Filter with 4mm Thickness.
Reviewed by 1 customers
if you look at the photo carefully (terrible photo by the way), which I didn't do, you will see that the gradation is in the horizontal format. Perfect for motion picture use, pretty much useless for still photography. Otherwise it's a good value.