36 back_surface Back Surface  | | | | 33 seat_surface Seat Surface  | | | 34 seat_support Seat Support  | | | 4 star_leg_base Star-shape Leg Base  |
37 back_hard_surface Back Hard Surface  | | | | 35 seat_hard_surface Seat Hard Surface  | | | | | | 6 central_support Central Support  | | 7 star_leg_set Star-shape Leg Set  |
| | | | | | | | | | | | | | | | | | | | | | 30 caster_yoke Caster Yoke  | | 31 wheel Wheel  | | 32 wheel Wheel  | | | 27 caster_yoke Caster Yoke  | | 28 wheel Wheel  | | 29 wheel Wheel  | | | 24 caster_yoke Caster Yoke  | | 25 wheel Wheel  | | 26 wheel Wheel  | | | 21 caster_yoke Caster Yoke  | | 22 wheel Wheel  | | 23 wheel Wheel  | | | 18 caster_yoke Caster Yoke  | | 19 wheel Wheel  | | 20 wheel Wheel  |