Ergonomic chair Computer chair Boss chair Home office chair waist support net cloth chair reclining swiveling chair large class net chair

1)  nylon frame with aluminum part
2)  high elastic mesh for the back and seat
3)  3D armrest
4)  line control mechanism with 3 class locking
5)  350mm aluminum base pass BIFMA test
6)  60mm PU castor pass BIFMA test