Corten Steel Structure: This large tall planter is made of corten steel, which is extremely resistant to atmospheric corrosion. The rust layer formed after treatment protects the steel and its service life is up to more than 80 years. When used in a natural environment, the Corten steel planters will gradually turn chocolate brown Tall planter size: The corten steel planters size is L:13.8" x W: 13.8"x H: 26". The metal square tall planter is equipped with 24 screws, a wrench, protective gloves and instructions. Note: This large metal outdoor planter needs to be assembled Removable Insert Shelf The tall plant pot come with a removable metal shelf, with suitable height and strong bearing capacity. The tall planters for indoor plants and greenery set pots, it's easy to replace.