FEATURES
High hardeness fillier material ( broken cotton 35mm )
High-level quality PU leather at 1.5mm thickness
Back cushion wooden supporter at 21mm thickness
Ball bearing used for all rotated Mechanism 
Stainless steel material for all fasten bolts
The frames at thickness of 6mm
Fixed nailing holes for machine
Aluminum knobs, caps and rings
Stainless steel back chshion position adjusted plate for 6 positions adjust, emts
Handlebar build for easy moving by wheels
Wider seat pad and leg pad
2H hardness for painting. Passed salt spray test more than 500 hours