This rocking chair is made of high impact polystyrene, which makes the surface material look more natural with a wooden feel. It is waterproof, anti-corrosion and anti-fading material, unlike wood which is easily rotten. Besides, the 304 stainless steel screws connected make the chair more durable.Rocking Chair Dimensions: 35 "D x 27" W x 43 "H, 380lbs weight capacity, porch rocking chair suitable for most adults. The design of high backrest and five-back plate is more solid, more comfortable and stable.Weatherproof, weather resistant and it can withstand the test of time. You can place your Adirondack rocking chair in any indoor, patio, garden, pool balcony or beach in any season without worrying about the weather.Easy Assembly and Maintenance: Pre-drilled holes make assembly easier and ensure more stable outside chairs for customers. For daily maintenance, first wipe the dust with a brush or cloth, and then clean the dirt with soap.