This construction and landscaping material is washed and screened to produce a clean and uniform gravel. Like all gravel products, #78 is a specifically engineered aggregate. In North Carolina, it is clean, crushed granite, with most pieces ranging between 3/8” to 1/2” long with very little smaller pieces or fines. This brings you an attractive landscaping material for walkways and decorative flower beds, for mulching around plants and shrubs, and for splash protection under building eves. 78 washed stones lets water through reasonably well, so it rinses clean in the rain.