THIS IS THE BALLAST YOU MODELERS HAVE BEEN WAITING FOR! BEST BARGAIN FOR HI-RAILERS! Our quart-size 'Shaker' comes with pour applicator cap. Our #16 grade natural stone ballast accurately graded for the most discriminating protoscale modeler! Lightly blended hues for subtle contrast. Unlike other ballast, our Scenic Express stone is "sealed" so it will not darken when Matte Medium is applied. Apply with 1:4 parts Matte Medium (EX0030).