Product details:

Sometimes simple is better and the 5500 basic design is an excellent example of simplicity at its best. It has an open air grid back that conforms to your back for passive ergonomic support. Also features 2-to-1 synchro tilt, pneumatic seat height adjustment and angled adjustable arms. Green guard indoor air quality certified. Feature 1: Built in lumbar support Feature 2: One touch pneumatic seat height adjustment Feature 3: 2-To-1 synchro tilt Feature 4: Height adjustable angled arms Feature 5: Heavy duty nylon base Feature 6: Green guard certified Feature 7: Arm height 23-1/4 Feature 8: Green Color : Not Applicable Assembled Dimensions : Not Applicable Seat Dimensions ( Overall ): Not Applicable Seat Height( Minimum ): Not Applicable Seat Height ( Maximum ): Not Applicable Back Dimensions ( Overall ): Not Applicable Arms to Seat Min: Not Applicable Arms to Seat Max: Not Applicable Arms to Floor Minimum : Not Applicable Arms to Floor Max: Not Applicable Storage Compartment ( Width ): Not Applicable Storage Compartment ( Depth ): Not Applicable Storage Compartment ( Height ): Not Applicable Storage Compartment Weight Capacity: Not Applicable Material Breakdown: Not Applicable Does Product Contain Wood : Not Applicable Wood Species or Material: Particleboard Composite Wood: Not Applicable Weight CapacitySurface or Seating : Not Applicable Fabric Material & Percentage: Not Applicable Upholstery Cleaning Codes: Not Applicable Fabricated In house Yes or No: Yes California Proposition 65 Warning Required: Yes CA Proposition 65List of Chemicals: Lead California Prop 65 Warning: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.