7901AB90T Color: Blue / Black Features: -Black frame.-Adjusts to provide all-day comfort for workers of almost every size or shape.-Thick, wide cushions with bolsters offer extra support.-Hinged back allows the fully upholstered back to pivot.-Functions include pneumatic seat-height adjustment.-Back-height adjustment and 360-degree swivel.-Five-star base has hooded dual-wheel casters.-Arms (height and width adjustable) to chair are sold separately.-Meets or exceeds applicable ANSI/BIFMA standards.-Made in USA.