1.Mesh：High quality wear-resistant and elastic mesh

2.Foam: 50mm 35 density  pure foam

3.Measurements: PP fixed back frame,PP fixed armrest

4.Frame: 12 powder coating black 4 legs chair frame with black nylon fixed foot plug( 5mm black PU castor)

5.Function: Foldable seat and frame, aluminum alloy connector adjustable writing board,with pen slot and cup holder,whole chair can be foldable