The stump removal tool includes 23 copper nails, 1 stainless steel nail, and 1 cobalt drill bit nail, enough for your daily use and replacement needs. Copper and stainless steel nails measure 3.5 x 0.1 inches and drill nails measure 2.6 x 0.1 inches. Our copper nails help to trees, stumps and by releasing excess copper ions that disrupt tree growth. It does not affect the surrounding plants. These hardware nails are mainly made of pure copper and stainless steel, which are strong, rust and have a long service life; the drill bit is made of cobalt containing high speed steel, which is heat , abrasion and distortion . No need for complicated tools or professional skills, our tree copper allows you to remove stump with ease, it's ideal for home gardening enthusiasts and professional alike. With this stump removal tool, you can easily solve stump and root problems without affecting the surrounding plants. Increase the efficiency of your tree management, thus saving time and effort. Protection: Our copper nails for stump removal protect the surrounding plants and not affect the surrounding plants. Easy to Use: Our copper nails are 3.15 inches in length and come with drill bit and stainless steel nails that allow the nails to be driven into the stump without bending. Product name:Stump Removal Spikes Nail length:9 x 0.3cm Drill Bit:6.7 x 0.3cm Purpose:Stump Removal Nail Colour:As Shown Material:copper Package Contents: 1set * Copper Nails Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.