1. All solid wood (rubber wood) sofa, open crutch mouth; 2. Three painting processes, arc design without sharpness; 3. Rounded and smooth sponge of the frame after polishing: flame retardant, high-density, high-elastic sponge is used, which can effectively prevent bedsores; 4. Fabric: PU leather with wear-resistant, waterproof, antibacterial and mildew-proof, fireproof and flame-retardant, and medical disinfectant resistance. 5. Frame: The frame is made of solid wood oak material, which is ergonomic.