Sofa: 1. Inner layer: wood frame + high elastic imported rubber + spring + arch dedicated base cloth 2. Middle furniture: high elastic sponge padding 3. Outer: furniture special leather, leather + PVC or choose environmentally friendly leather + PVC cladding This offer is for the domestic leather + PVC cladding 4. The outer frame trims: wood paint shelf .5 Accessories: Gu Kang environmentally friendly glue, camel Island powerful code nails, Germany cotton leather sofas: Leather: Italy imported Green Paper (imported leather), thickness 1.0-3.0mm, the pigment used non-toxic, environmentally friendly, delicate texture, fine leather, soft elastic. Sponge: The import of low-flammable foam molding, 30 # -50 # high-density polyurethane foam, seat comfort, resilience and strong, durable without deformation. Frame: made of natural wood, high temperatures insecticide, degreasing, drying, dryness ≤15 Tripod: wooden tripod. Visible part of the surface of imported wood (walnut, etc.) Features: beautiful, comfortable and durable.