Features: *Easy to use: Since copper is a soft material, you need to use a drill to drill holes on the tree roots, then hammer the copper nails into the holes, and finally nail the nails evenly around the base of the stump. *Removing stump roots: This copper nail helps to remove trees, stumps, and roots by releasing excess copper ions to damage the growth of trees. *Copper nails for killing trees, stumps, and roots: 4-inch long nail spikes can pierce stumps or roots *4-inch large copper nails: Made of pure copper, it can kill your unwanted plants to the maximum extent, perfect for projects, shipbuilding, etc. *Copper nails: Compared with , it will not disturb or harm the surrounding area. *Quality: For safety reasons, you can nail 10 nails on larger tree trunks and 5 nails on smaller tree trunks. They stop growing in the first few days. Specifications : Product Name: Tree Killer Nails Material: Copper Size: 4 inches Color: Copper + Silver Package Contents: Package 1#: 15pcs (3.15-inch nails X15 + 1 drill bit) Package 2#: 25pcs (3.15-inch nails X25 + 1 drill bit) Package 3#: 20pcs (4-inch nails X20 + 1 steel nail + 1 drill bit) Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture shown on the website. 2. Please allow slight manual measurement deviation for the data.