It's colored sand by Crayola! I did not know they made big bags of colored sand! And it was all f-r-e-e! How? Well, ya know Brad works for the city's Parks & Recreation Department. And apparently our Wal-Mart donates busted bags of sand to the city. The bosses did not want to put pink, green, and blue sand in the park so Brad got to bring it home to our little sandbox! Gogurt and Poptart were so excited to play in the colored sand.....!