Package & Size: You will receive a set of tree stump removal tools, including 23 copper nails, 1 stainless steel nail, and 1 cobalt drill bit. The copper nails and stainless steel nail measure 3.5 inches x 3.5mm, while the drill bit nail measures 2.7 inches x 3.5mm. This set provides sufficient quantity for regular use and replacements. Premium Material: These hardware nails are made primarily of pure copper and stainless steel, offering durability, rust resistance, and long service life. The drill bit is constructed from cobalt-infused high-speed steel, providing resistance to heat, wear, and deformation. Functionality: The copper nails can disrupt tree growth by releasing copper ions, which may assist in managing unwanted trees and stumps. To use, create pilot holes using the included drill bit and stainless steel nail, then hammer the copper nails into the holes around the base of the stump. Protect Surrounding Plants: This method allows for targeted treatment that helps remove tree stumps without affecting nearby vegetation. Color: Copper + silver Material: Copper, stainless steel, cobalt high-speed steel Package Contents: 23 x Copper Nails 1 x Stainless Steel Nail 1 x Drill Bit Note: Light reflection and display settings may cause slight variations between the color in the image and the actual product. Measurement may vary by +/- 1-3 cm. Only the items listed above are included; other accessories or tools shown in images are not part of the package.