Electroculture Revolutionary Method: With the atmospheric antennas, it can harnesses the earth’s natural energy to increase crop yields while reducing the need for fertilizers High Premium Material: Electroculture antennas backbone is 29cm natural log and wrapped with 99.9% pure solid copper wire, are placed into the soil to create an ether antenna 18 Pack Plant Stakes: The total length of the stakes is 13.5 inches, and each log is wound with no less than 50 inches of 14-gauge 99.9% pure copper wire. Pack of 18 Easy to Install: Insert the antenna into the soil 2-3 inches to complete the installation, the installation process is simple and clear, very friendly to beginners Winding Clockwise: The antenna is wound clockwise from bottom to top, specially designed for the northern hemisphere, such as the United States, Canada, Europe, etc. 18 Pack 13.5" Electroculture Plant Stakes, Long Copper Garden Stakes, Electroculture Copper Coil Antennas for Growing Garden, High-Yield, Eco-Friendly