CHA7707 is just the best seating solution for providing movement and variation

FEATURES:

Pneumatic, Back Height Adjustable,
Swivel, Tilt , Tention,
Asynchronous Control ( High performance
with three levers to modify:
* Angle of the back relative to seat
* Tilt free float or infinite lock
* Forward tilt
All adjustable arm: each arm rotates
30 degrees and adjust 2.5" in height