I recently purchased the VEVOR cable rail posts, and I'm extremely impressed with the material. Made of SUS304 stainless steel, these posts are incredibly durable and resistant to rust. Even in outdoor environments with exposure to moisture, they show no signs of corrosion. The 36-inch x 1-inch x 2-inch steel structure provides a solid foundation, and the black finish not only looks sleek but also adds an extra layer of protection. I'm confident these posts will last for years to come.