... backward 8 degrees,seat depth lengthened 3cm,to help disperse weight pressure,more healthy & comfortable.3.Lay up conveniently,can ... caster moving more flexibly.5.Installed flexible shock absorption rubber device in the pillar,more comfortable,prolonging the service life of ... prolong service life.7.Fixed desk armrest,fixed footrest,net weight is only 10kg only.8.Aluminum oxidation frame,hard cushion ...