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. 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 cobalt drill bit is constructed from high-speed steel with cobalt, providing heat resistance, wear resistance, and reduced deformation. Tree Stump Removal: Copper nails help inhibit tree growth by releasing copper ions, 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, spacing them evenly around the base of the stump. Protect Surrounding Plants: This method targets the stump without harming nearby vegetation. Color: Copper and silver Material: Copper, stainless steel, cobalt high-speed steel Package Contents: 23 x Copper Nails 1 x Stainless Steel Nail 1 x Cobalt Drill Bit Note: Light reflection and display settings may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.