Pistol River Dune Sand April 26, 2019 / Rock Products, Sand, Soil amendments / By Tori Jones Sizes: #40-#60 (Average #50) SALT FREE Extremely Fine Sand from the Pistol River Dunes.Common Uses:Mason WorkUsed for Lawn AireationSand BoxesUnder and Around PaversVolley Ball Courts, Horseshoe Pits, Golf Courses