copper nailsPackage & 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 in x 3.5 mm; the drill bit measures 2.7 in x 3.5 mm. This set provides sufficient quantity for regular use and replacements.Premium Material: These nails are made 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.Tree Stump Removal: Copper nails help inhibit tree regrowth by releasing copper ions into the wood, aiding in the decomposition of stumps and preventing regrowth.How to Use: Drill 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 for even distribution.Protect Surrounding Plants: This method allows for targeted stump treatment without harming nearby vegetation.Color: Copper and silverMaterial: Copper and stainless steelPackage Contents:23 x Copper Nails1 x Stainless Steel Nail1 x Drill BitNote: Light reflection and display settings may cause slight variations between the product color in images and the actual item. Measurement may vary by +/- 1-3 cm.