The 4' x 4' Raised Garden bed from Lifetime products gives you the perfect garden setup in in less than one hour. It is constructed of UV-protected high-density polyethylene (HDPE) with simulated wood design. It is low maintenance, weather resistant and will not rot, crack or peel. The walls high but two beds can be stacked together to create walls to accommodate deep-rooted plants. With its easy do-it-yourself assembly and low maintenance features, gardening has never been this easy.