A mixture of sand, clay and fractured rock. Used as sub-grading for sidewalks, driveways and patios. Not recommended for drainage as product is intended for compaction. 1 cubic yard covers 100 square feet at 2.5-3 inches deep. Product colour and size can vary slightly. *Please kindly note that handy cubes are delivered on trucks with forklift. Handy Cubes CAN NOT be lifted over fences, dropped in garage or any enclosed space.