No, it's not a trash to put your 3D printer in! But a trash that you can put on top of your printer which has a 20x20 aluminum profile like the Creality CR10/10s, Tevo Tornado, Ender 3, etc.. The idea is to have a recipient to put all your little filaments, removed supports, etc.
Two models are available: one is to put on top of the printer, the other one is (almost) the same model, but to put simply on a table.
This model has been designed to avoid the need of supports however some parts have a little bit of angle. Don't print it too fast.
I had very good results at 100 microns, if your printer can go in 50 microns steps, 150 microns could be a good resolution.
About this model purpose
It has been created in ZBrushCore as a part of a series of videos to explain to people how they can start designing themselves their own model. The tutorial is available on my channel (https://youtube.com/polysculpt), but in french.