This is a resource/objective marker for tabletop gaming. Its base is 50mm in diameter. It was designed, both in object scale and in base size, for Warmachine but it ought to work for other 28mm tabletop games... or really anything else, if you aren't picky about scale and just need a 50mm diameter marker.Can't print your own, or want better detail than your printer can manage? This thing is now for sale in my shapeways store: http://shpws.me/LP8LPrint. (I've had good luck at .1mm layer height) Prime. (I recommend gesso, Golden brand is good.) Paint. (Make sure you use a quality paint!) Base. (I haven't gotten to that point, yet) Play a game that requires your resource marker. (That is the point, after all)