The ground anchors I needed to stretch wires for a climbing rose. Through the spiral plate below the anchor can be screwed into the ground. In the loop above can be to insert an iron bar to get the longest possible lever. Even in a very stony ground I could sink the anchor so halfway. I probably would have come more deeply if I had used a longer rod. Even if my two anchors are screwed only to almost half, hold already and I could not tear it.