It's this one : https://www.amazon.com/Monoprice-115365-Select-Printer-Filament/dp/B01FL49VZE/ref=sr_1_3?ie=UTF8&qid=1522992086&sr=8-3&keywords=mini+3d+printer
Good little printer, cheap but works.
I heard PLA flament can act as something similar to bio pellets, but I never confirmed nor...