* 2 available.  (1 with adjustable arms, 1 with loop arms)
* Band D fabric - nicer than the base fabrics.
* 3 levers mechanism:  
- Height adjustable by lever
- Backrest angle adjustable by lever.  
- Seat base angle adjustable by lever.  
* Tension control.  Seat can be released to float and the resistance tailored to the user.  
* Sculpted back for additional support.  
* Height adjustable arms.    
* Matching claret operator chairs available.  
* All in great condition.