VERTU:

Ergonomic research and medical analysis, set hidden waist support, protect
your backbone softly. For your comfort sitting auto adjustable back according
to different weight. It can be adjustable with your comfort.
The Vertu Series features:
1) Hidden Waist support
2) Protect your back bone.
3) Adjustable Armrest/Fixed Armrest
4) WeightActivated Synchronized Tilt Mechanism
5) Aluminum Alloy Support
6) Polished Aluminum Alloy Five-Star Basement/Fixed Cantilever Base.
7)100% Comfortable For seating at any where.