Sunlu Dryer - Filament ID System

My three Sunlu filament dryers sit on top of the enclosure and feed directly inside, so they are loaded pretty much all the time and I don't always remember what is where. So I came up with an easy method for identifying what type of filament is loaded in what box without needing to dig the roll out and find the roll tag. Two rolls of white? No worries!

The cards slide down into the holder and the lettering is “hollow” so it's got great contrast and is really easy to see. The backs are recessed for 1mm double sided sticky tape, so the holder sits nice and tight to the box.

I've only modeled PLA and PETG tags because that's all I have on hand so far, but I'll likely add tags for other filament types at some later date.