1.High resilient foam sponge from east Asia,keeping a good shape within 3-5 years, with YIDA fabric from Taiwan, prevent deterioration

2.Fireproof PU outside back with spring system,automatic returen fumction, low noisy, preventing shock

3.rolled cold steel leg with painting

4.back can be leaned with different angle

wtih tablet and cup support,for training meeting or conference use,more convenient and considerate...