Powerfield’s Electric Poultry Pen provides the ultimate predator protection for your chickens. This poultry pen features 10 horizontal lines with 7 double-spiked stop-in posts. Semi-rigid vertical stays provide stability and help prevent drooping between posts. To preven telectrical shorting during weed growth, the bottom line is non-conductive. Positive-Negative setup eliminates the need for a ground rod.