These heavy duty 4 foot step-in fence posts will help keep your property protected when used with an electric fence system. The Zareba Black 4 Foot Step-In Fence Post has molded clips that hold electric fence wire & poly tape (up to 2" wide). Each 4 foot post is molded of reinforced polypropylene with a heavy-duty steel stake. Containing extra reinforcing ribs for strength, each post also features a large step-in flange and anti-rotation spike to keep the stake from turning. Color of posts: Black.