Electroculture antennas easily allow you to: - Increase Yields - Stimulate Root Growth - Use in Any Stage of Plant Growth from Seedling to Mature Plant - Revive Old, Tired, or Un-healthy Plants Easily - Grow Better Plants with Less Work! Each Wood stake is 12" long x 1/4" diameter natural wood wrapped in 99.9% pure solid copper wire Use Electroculture plant stakes for better growing! Electroculture allows you to easily increase yields, accelerate growth rates, and improve crop quality. Reduced need for fertilizer. In short you can grow bigger and better crops in less time, with less effort, and at a lower cost! Simply place stakes 3"-5" deep into soil