Build and maintain the perfect mound with ease. Use to correct height and slope, establishing sub-grades during new construction. Also great for adding packing clay. After initial measurement, simply remove the gauge, reshape the mound and reset in the same spot for confirmation. The 8' aluminum gauge is marked every foot and includes a metal ruler for measuring the slope. The built-in bubble level and adjustable support rod insures proper leveling instructions. Priced per single unit.