Nautilus Designs Thames Ergonomic High Back 24 Hour Multi-Functional Synchronous Operator Chair With Multi-Adjustable Arms Blue - DPA1431FBSY/ABL DDModest, sturdy and reliable, this ergonomic 24 hour high back chair is host to a range of features which allow adjustment to suit the user's preference. A contoured backrest with a 3D curvature incorporates lumbar and spine support. A multi set synchronous mechanism offers back height, back rake, forward seat tilt and seat slide adjustment. It also provides tension control adjustment to allow for the individual's bodyweight and is lockable in the