These post caps with globe finals slip over and screw onto the top of fence posts to protect them from weather and natural wear while adding style to your yard. This metal fence post top is made of M.S. metal with a smooth surface, good looks. It is also rot-resistant, protecting your posts against weather conditions. Standard thickness ensures good strength and protects the post. This post top is suitable for square 81 mm posts. Size: 3.74cm H x 4.13cm W x 4.13cm D