Colors The color category carries a wide variety of color applications, from pre-measured color packs to 6 sack Transit mix bags. The large bags can be purchased to measure individually the color you desire for a countertop or vertical stamping mix for example rather than using the color packs. These are high quality colors and are available for pick up or shipping. Many colors are stocked randomly and quantities are not consistent so leave enough time for shipments to arrive. We do not use site mixed granular colors since these are problematic with color streaking especially in interior pre-cast.