1, Adjustable backrest fore&aft 45 degrees

2, Fore and aft sliderail with adjustment of 150mm

3, Retractable safety belt

4, Document bag

5, Mechanical suspension integrated in cushion

6,Electronic sensor pad built in 

7, Popular mounting size:

side to side x front to back

(228--230mm)x(280--290mm)
or 
(328--330mm)x(280--290mm)