8 Packs 23.8 in Barbed Wire Arm These fence post extenders add vertical height to your yard, yard, or pet enclosure-ideal for boosting privacy and preventing pets from jumping or escaping. Made from heavy-duty steel with powder coating for long-lasting outdoor use. Includes all necessary hardware for quick and easy installation. Made from thickened steel for strong impact resistance, the fence post extender won't bend under pressure.