Flat ocean rocks, 10 rocks. 1 1/4 to 1 1/2 inches approx. flat ROUND beach rocks, Great for painting or carving necklace Pendants. Flat ocean rocks, 10 rocks. 1 1/4 to 1 1/2 inches approx. flat ROUND beach rocks, Great for painting or carving to make necklace pendants. Beautiful flat oval rocks, These are hand selected rocks so they are uniform and great for necklace pendants. This makes a great Gift! Paint a picture for your loved one and give them a beautiful gift they will always treasure. These come directly from the ocean and are all natural so you will need to wash them if you are planning on using them in your fish tanks.