Multi fit ground spike is a perfect choice for all types of holders. Use this soil spike in garden for a quick installation of clothes airer, washing line poles, bird feeder stands and flag pole. Made from galvanized steel this ground spike is water resistant. It also comes with a plastic adapter which you can insert in the spike to keep it water and dirt free. The cross ends provide strong grip and makes this rotary airer holder fit firmly in the ground so it won't move from its place. The diameter size of this soil spike is 40mm.