It is a key ring of the Real Club Náutico de Castellón (rcnc), color change: layer 8 down red and up white. The bad thing is that if you have 0.4 nozzle, which is the one I have checked, you can not print certain parts of the model, as some parts are very thin and the nozzle can not do it. :)
I advise you to make the model bigger in your trusted laminator ;)
The author marked this model as their own original creation.