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. 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. 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. It helps to remove stumps and by releasing excessive copper ions to damage tree growth. 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., Weight: 0.24691773344 pounds, Manufacturer: Tuidzljd