Mount your steel targets anywhere with this AR500 double slide hook hanger, engineered to fit heavy-duty green t-posts measuring approximately 1.25×1.30" (excluding nubs) — the sturdiest and most widely available option at farm supply stores. The 3/8" AR500 construction delivers lasting durability, and while it works on lighter or off-size posts, a heavy-duty post ensures the tightest hold and best performance.