Product Specific Description: [Material Description]: 1. inner frame - Sofa inner frame made with thick wood side. 2. seat - into the snake spring bearing seat package, not an ordinary rubber band. 3. Sponge - high-density foam; completely free of black cotton, recycled cotton in the product. 4. by the package - using real 3A standards doll cotton materials to ensure product uniformity and beautiful. 5. Fabric - Customers can choose from a variety of fabric colors, you can contact Customer Service release plate selection.