[Well Made and Sturdy] There are 23 copper nails, 2 stainless steel nails, and 1 drill bit. The included drill bit should prevent them from bending when using them. [Easy to Use] Drill a hole, hammer in the steel nail, remove it, and then hammer in the copper nail. Just make sure you remove some bark and get close to the base of the tree - aim for exposed roots as much as possible. [DIY Project] Use pure copper nails for electroculturing, they seem to work well. They are super easy to use and can be used for other. [Tree Stump Root Removal] Pure copper nails take time to kill the stump. It seems that it works, but the hardness of the tree is the real factor that determines how many times it is used and how long it works. [Ecosystem] Strong copper nails that can get rid of tree stumps naturally and will not harm the ecosystem. How to Use the Nail Set: First, use the drill and stainless steel nails to make pilot holes in the tree roots, then hammer the copper nails into the pilot holes, and finally hammer the nails evenly around the base of the stump. Protect surrounding plants: Copper nails are used to remove stumps and tree roots without affecting surrounding plants. Note:Due to different production batches, there are differences in styles and colors, which does not affect use. Colour:Copper Color & Silver Material:copper Package Contents: 23 * copper nails 2 * stainless steel nails 1 * drill bit 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.