Holey rock, 10 Rocks, approximately 3 inches and under. Beach rock with holes, holy rocks, beautiful holy beach rock, ocean holey rock, holey rock for your aquarium. These are one of a kind beautiful holy beach rocks that are truly stunning. The picture above only shows generally what you will receive. The rocks will not look exactly like the picture above because no two rocks are the same. Looks great in a terrarium or fish tank, or any other project you might have in mind. These rocks have fantastic weathered holes and crevices.