I have used a lot of ballast products through 40-odd years of building model railroads; the selection, quality, and match from Arizona Rock & Mineral is right at the top. Not only is there a huge selection of colors and styles, but (most importantly) it matches from package to package. I have encountered color differences with other manufacturers, but never had an issue with Arizona’s products. They have a huge variety in ballast – you can get exactly what ballast the prototype you are modeling uses, for a more detailed model railroad. I would recommend Arizona Rock & Mineral Co. to anyone building a model railroad.