The Quikspray® Stoneblower is a hand-held dry aggregate blower designed to place small stones, marble chips and other decorative products like Coquina shells into unset cement or epoxy base coats for use in decorative panels or exposed aggregate finishes. This unit is not used for small aggregate, like sand, but larger sizes up to #4 work great! Another use for this unit is placing non-skid into base coats for non-skid applications.