This is a guard for the print head cooling fans on the Monoprice Maker Select V2, modeled in Autodesk Inventor Professional 2016. Theoretically, this piece should also work for the Wanhao Duplicator i3/Cocoon Create. I don't have either of those printers, though, so I can't say for sure that the fans are the same.
It push-fits directly into the two unused screw holes. Depending on where the screws are on the cooling fan (not the one on the heat sink), you might have to move one of them.
Note: it does make the fans a bit louder due to slightly restricting the airflow, but the noise increase isn't significant compared to how loud the printer is anyway.