Galvanized Raised Garden Bed 72"L×36"W×24"H, Titanium GreySavana Garden Bed Material: Sturdy thick metal frame with grooves made with durable Zinc aluminum coating . Special Feature: Savana's galvanized raised garden bed is easy to install and comes with protective rubber strips. 4 stake supports are added onto the four corners and each corner features a socket that also allows you to install arched poles (not included), so you can opt to cover your raised metal garden boxes with various types of protective