All natural fine sand. This finely graded sand can be used in sandboxes, landscaping, cat litter boxes and weight sand can also be used for landscaping applications Not to be used for sand blasting. Fine Sand is a washed and graded. It is a great option for brick pavers and flagstone. In the winter sand can be used for Increased traction on snow and ice. Mix with potting soil and perlite to create a great growing medium.Mix with Portland cement and gravel to make concrete. Dampen sand to improve packing, forming, and shaping characteristics.