Package & Size: You 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. Sufficient quantity for daily 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, resistant to heat, wear, and deformation. Tree Stump Removal: Copper nails help inhibit tree growth by releasing copper ions, effectively aiding in the removal of unwanted trees and stumps. How to Use: Drill pilot holes using the included drill bit and stainless steel nail, then hammer the copper nails into the holes. Space the nails evenly around the base of the stump for best results. Protect Surrounding Plants: This method helps remove tree stumps without harming nearby vegetation. Color: Copper and silver Material: Copper, stainless steel, cobalt alloy 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.