3x3 Blank with Rounded Corners

This is a 3" x 3" blank with rounded corners intended for use with a UV printer. Can be used for coasters on the slightly smaller side, or add a magnet to the back for a printable fridge magnet.  Also see the jig for this item for use on the Eufymake E1 at this link: Bonsai Print Garden 3x3 Jig.