Snap-together construction replaces screws and drills across eight parts and six steps, so a pair of chairs goes from carton to patio without a toolbox. The curved 30.5-inch backrest sits at 99 degrees, following the spine instead of forcing it upright. Weatherproof HDPE resists fading, cracking and peeling through sun and snow, and a stain-resistant surface washes off with soapy water.