Neewer 37mm clip-on ND Filter Case

thingiverse

I got a [Neewer 37mm Neutral Density Filter](https://www.amazon.com/dp/B074JYY9Q3/). from Amazon for my phone. It came with a "case", but when you screw the filter onto the phone clip the two together no longer fit in the case! I'm not going to screw/unscrew the filter every time I take it out to use it. That case clearly was made for some other 3 filter set and the just decided to use it for this ND Filter. Totally unusable. So I designed this case that snaps open/shut. I even put a little ND filter logo on it. Hopefully other's that buy this filter can enjoy having a decent case for it. Other types of clip on filters might fit in this thing if they have the same basic shape, but I wouldn't count on it. The filter can still rattle around a little in the case, but that's because I left a small amount of room to glue in a small disc of felt in the bottom to make things extra nice. It'll still protect your filter even if you don't bother to do that.