This is a marker disc to be used during disc golf (to mark where you putt from). I used the dimensions of a Dynamic Discs marker disc for the overall dimensions of the design.
You need a 3D printer capable of printing in multiple colors to produce similar results to the photo. Alternatively, I suppose you could print the individual STL files and glue them together.
Although I included the complete disc STL file, I found that I got the best results by printing the top and bottom halves of the disc separately, and then gluing them together.
Additionally, you can check out my design for a Baylor Disc Golf marker disc (https://www.thingiverse.com/thing:3308432).
If you print this in 2 separate halves, you shouldn't need to print with supports.