It's a clip-on hook for the DowelMonkey system filament shelf that enables you to hang things like swatches or even benchies!
The DowelMonkey system is a series of models I'm creating around the use of wood dowels.
If you're using the DowelMonkey filament shelf, it's super helpful to be able to see a real sample of the filament in action!
Ease of Use - Just clips on the dowels, easy right?
Cheap and Fast - Quick to print and uses very little filament.
Just a DowelMonkey filament shelf (or any other structure with horizontal 1" or 25.4mm dowels), the brackets for which are linked below.
If you find the model helpful, please like it or add it to a collection.
https://www.printables.com/model/1083204-dowelmonkey-filament-shelf-brackets

https://www.printables.com/model/1127761-dowelmonkey-clip-on-label

https://www.printables.com/model/1083320-dowelmonkey-filament-shelf-platform

You can find the OpenSCAD generator for it here:
https://makerworld.com/en/models/152792#profileId-166881
The author marked this model as their own original creation.