This cushion storage box is made of aluminum frames and woven in 8mm flat PE weather-resistant wicker. This cushion box accommodates all the cushions from a large corner sofa group seating approximately 8-10 people. The cushion box features a fabric liner made with water-repellent fabric and zips at the top to keep cushions clean and dry. This is designed for cushion storage during the summer but should be moved indoors during the winter months to ensure cushions don't get damp in the winter or potentially become victim to mice or other vermin.