Amia is a versatile ergonomic office chair designed to handle long hours of sitting. Features adjustable LiveLumbar technology inside its backrest that responds to the movement of your back. Fully adjustable and easily adjusts to fit you for perfect support, comfort, and performance all day long. Please note I have 3 chairs available, selling them individually (the price listed is for one chair) Feature and adjustment: Upholstered seat and back in black vinyl. Frame and base color: Black 4-way fully adjustable arms height, width, pivot, and depth. Adjustable seat depth (from 15.5" to 18.5") Flexible front seat edge. Upright position back lock, and adjustable back tension. 5" Pneumatic adjustable seat height (from 16" to 21") 4" Back LiveLumbar height adjustment. Weight limit 400lbs. Manufacturer: Steelcase Year manufactured: 2017 Overall dimensions: Depth 21.75" to 24.75" x Width 27" x Height 37.5" to 42.5 x Weight approx. 50lbs.