The Onyx chair is a fresh, contemporary office chair that offers a range of inspired features such as a multi-functional asynchronous mechanism with multiple adjustments and a contoured foam seat and back for extra support and comfort. 
 
 
 
 
 
Seat slide
 
 
Contoured foam
 
 
Ratchet back height adjustment
 
 
Adjustable arms
 
 
3 lever mechanism
 
 
Pump up lumber
 
 
Brushed aluminium base
 
 
UK crib 5 foam and fabric
 
 
Gas lift tested up to 135kg
 
 
Usage: Task 24/7