... -friendly materials in high quality ) a)All dried solid wood frame , No sag , spring deck . All wood polished for anti-moisture ... materials : a)Genuine Italian leather , top-grain Chinese leather , fabricare , PU available b)All sofas can be changed for other materials ... leather , fabric or PUFrame: 1)All dried,selected solid larch frame.2)High elastic belt/no-sag spring.3)High density ...