Proline Decorative Concrete Systems RS700A 41" x 41" Santa Fe Random Stone Medium A Concrete Stamp. A natural stone with a exclusive characteristic. Our Santa Fe Random Pattern comes in 3 sizes of stone- small, medium and large- with a light sandstone background. What makes this pattern unique is that the 3 sizes are interchangeable- for a truly random natural look. Consider using our Santa Fe Random Stone Medium with our Santa Fe Random Stone Large in a driveway leading into a walkway with our Santa Fe Random Stone Small. Scale up or down- its so easy with Prolines Santa Fe Stone Series. Added bonus: each size comes in 2 different color-coded patterns, allowing for a more random pattern.