1. Package & Size: You will receive a set of tree stump removal tools, including 12 copper nails, 1 stainless steel nail, and 1 cobalt drill bit nail. The quantity is sufficient to meet your daily use and replacement needs. The size of the copper nails and the stainless steel nail is 3.5 inches by 3.5 millimeters, and the size of the drill bit nail is 2.7 inches by 3.5 millimeters. 2. Premium Materials: These hardware nails are mainly made of pure copper and stainless steel, which are sturdy, rust - proof, and have a relatively long service life. The drill bit is made of cobalt - containing high - speed steel, which is resistant to heat, wear, and deformation. 3. Remove Tree Stumps: Our copper nails can disrupt tree growth by releasing excessive copper ions, which helps to eliminate trees, stumps, etc. 4. How to Use the Nails Set: First, make pilot holes using the drill bit and the stainless steel nail. Then, hammer the copper nails into the holes. Finally, drive the nails evenly around the base of the stump. 5. Protect Surrounding Plants: Copper nails can be used to remove tree stumps without significantly affecting surrounding plants. 6. Colour: Copper & Silver 7. Material: Copper 8. Package Contents: - 12 copper nails (9 cm) - 1 stainless steel nail - 1 drill bit Only the above package content is included, and other products are not. 9. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1 - 3 cm.