The adjustable height back on extended height model features a built-in lumbar support. The seat also features a waterfall edge for better circulation. Mechanism provides pneumatic seat height adjustments. Can extend 9.5" from 44.5" to 55".

Dimensions: 44.5" H x 26" W x 28" D

Meets or exceeds ANSI/BIFMA standards.

• The American National Standards Institute (ANSI) and the Business and Institutional Furniture Manufacturer's Association (BIFMA) work together to produce voluntary standards that provide a common basis for evaluation of product safety, durability and structural adequacy.

Greenguard approved.

• As an industry leader, aims to set high environmental standards offering a large collection of GREENGUARD Indoor Air Quality Certified products and GREENGUARD Children and Schools Certified products. The GREENGUARD Certification Program is internationally recognized for evaluating product emissions and certifying building materials, furnishings, finishes, and cleaning products and processes that meet stringent indoor air quality criteria defined by GEI.