These are rubber pads for the great phone holder by Xanoy: https://www.prusaprinters.org/prints/40471-phone-holder
I was inspired to do these after seeing the rubber feet Warja did for this same phone holder: https://www.prusaprinters.org/prints/40996-rubber-feet-for-phone-holder
Please note that the large pad is not completely symmetrical, the studs are slightly offset to one side.
I would suggest you print 2 small pads and one large pad all in one go.
I had issues with melting when trying to print a single small pad alone, the stud layers are quite small and don't get enough time to cool in between each other. Printing two of those at the same time was enough to solve this issue for me.
I also did not print a base layer, opted instead to show the gird infill set at 25%. Looking at it now I think it would have looked better to go with a honeycomb pattern instead, much more inline with the phone holder design.
The author hasn't provided the model origin yet.