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 in x 3.5 mm; the drill bit measures 2.7 in x 3.5 mm. Premium Material: These nails are made of pure copper and stainless steel, offering durability, rust resistance, and corrosion resistance for long-term use. The cobalt drill bit is constructed from high-speed steel with cobalt, providing heat resistance, wear resistance, and reduced deformation. Tree Stump and Root Removal: The copper nails help inhibit tree growth by releasing copper ions, aiding in the removal of unwanted trees, stumps, and roots. How to Use: Drill pilot holes into the tree roots using the included drill bit and stainless steel nail. Insert the copper nails into the pilot holes and drive them evenly around the base of the stump. Protects Surrounding Plants: This method allows for targeted stump and root removal without harming nearby vegetation. Color: Copper and silver Material: Copper, stainless steel, cobalt-infused high-speed steel Package Contents: 23 x Copper nails 1 x Stainless steel nail 1 x Drill bit Note: The package includes only the items listed above. Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1–3 cm.