Mexican Beach Rock, .5"-1"---$28 per bag Price: $28.00/per 50 pound bag Description: These are smooth, black Mexican river rocks. Size .5"-1" Uses: The smooth finish and deep coloring of these Mexican beach pebbles is perfect for a variety of head-turning uses: water gardens mosaic paving accent ground cover and much more. Recommended Coverage: 2 square feet per bag Colors: Black, blue, gray