15 copper nails, 1 cobalt drill nail, etc. A set of tools for removing tree stumps, which can meet daily use and replacement needs. The size of the hardware nails for trees and stainless steel nails is 3.14 inches x 3 mm, and the size of the drill nails is 2.3 inches x 3 mm.<br> It helps to remove stumps and by releasing excessive copper ions to damage tree growth.<br> These hardware copper nail stump sets are mainly made of pure copper and stainless steel, which are , rust-proof and -. The copper nail stump is made of 99% pure copper, which is thicker than other products and has a long service life; the drill bit is made of cobalt-containing high-speed steel, which is to high temperature, wear and deformation.<br> Copper is a soft material, drill holes on , then hammer the copper nails into the holes, and finally evenly place the nails around the bottom of the stump.<br> The stump can be taken out and reused after use. Trees with a diameter 2 feet require 10 or more copper nails. This versatile copper nail stake kit is not only great for killing unwanted trees, stumps and , but can also be used as a helpful tool for different DIY projects.<br> The principle behind using copper nails is that trees die from reduced healing ability and long-term exposure to excessive copper ions inside.<br> Colour:As Shown<br> Material:copper<br> Size:Copper nails for killing trees:about 3.14 inches x 3. mm, Drill nails:about 2.3 inches x 3 mm.<br> Package Contents:<br> 1set * stump remover<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store