Simple Step‑by‑Step Use: First use the included drill bit or steel nails to create pilot holes in the stump or major , ensuring proper depth and spacing. Then insert the copper nails firmly into the pre‑drilled holes so they penetrate fully without bending. Gradual Tree Stump Action: tree stump nails work by releasing copper ions inside the wood, interfering with the stump's water and nutrient transport over time. This natural process requires patience; results are not immediate. High‑Purity Materials: These copper nails for killing trees, stumps & are made from approximately 99% pure copper for excellent resistance and outdoors. Targeted & Environmentally Considerate: Our pure copper nails to kill trees are designed to be placed directly into unwanted stumps and invasive , allowing you to focus treatment on specific trees., Manufacturer: Akfldms