There is no such thing as a Junior1, you can see the official Creality range of FDM printers on the FDM 3D PRINTER page, on their web site.
Upon a cursory comparison of the photo it is one of these:
- Ender-3 Max 3D Printer
- Ender-3 Pro 3D Printer
- Ender-3 3D Printer
However, the first one can be discounted as the spool holder is missing. So this leaves the last two.
Finally, the biggest clue is in the photo itself, as the name is written in the last line: Ender-3 Pro.
Nevertheless, given the seller's random "junior" labelling, it is not entirely guaranteed that the printer is, in fact, a Pro.
Unless they are super cheap or a renowned seller, then it is probably best to avoid purchasing anything from them. Or contact the seller to see if they would clarify their misleading advert.
1 The term junior could be an indication of the base level entry of the printer, or a reference to its build size, which, while not small and is pretty standard, it is not as large as some of the more pricey Creality models.