Greenes Fence Cedar Raised Garden Bed, (4 Ft. X 4 Ft. X 10.5 In.) Made in the USA from naturally rot- and insect-resistant cedar. The wood is 100% chemical free. Boards slide into the corner posts without tools forming a secure garden frame. To install the decorative tops simply use a screw driver. Stacking 2 of these makes your garden 21 inches tall (each kit sold seperately). Package contains 12 boards, 4 corner posts, 4 decorative tops (4 screws for tops), and instructions