These heavy duty 4 ft step-in fence posts will help keep your property protected when used with an electric fence system. The Fi-Shock White 4 ft Step-In Fence Post has molded clips that hold electric fence wire & poly tape (up to 2 in wide). Each 4 ft 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.. Electric Fencing Component: Post. Livestock Supplies Product type: Equipment. Material: Plastic. Post Type: Step-in Post. Rating: Heavy Duty. Returnable: 90-Day. Product Depth (in.): 3.4 in. Product Height (in.): 47.5 in. Product Length (in.): 3.45 in. Product Width (in.): 1 in