12 Pcs 4 Inch Long Copper Nails Spikes for Tree Killing, Stump Removal with 1 Pcs 4 Inch Steel Nails, for Landscaping & Gardening, Storage Box Included

Specification:
Material: copper, steel
Dimensions: 100 x 0.4 mm (length x diameter).

How to use:
Drill a pilot hole in the shaft with the steel nail first
Hammer the copper nails in the pilot hole
Spaces nails evenly around the base of the stump
Try to remove as much bark as possible to expose the pulp of the tree
With trees over 2 feet in diameter, use more than 10 spikes

Package includes:
12 x Long Copper Nails
1 x steel nail.
1 x transparent storage box.

Tips:
The principle of using copper nails is that the tree dies due to reduced healing ability and being exposed to a highly toxic substance from the inside for an extended period of time.