Mirus task stool is designed with ergonomic support. Stool is easy to adjust for personal fit with simple-to-use lumbar, seat depth and arm adjustments. Other functions include pneumatic seat-height adjustment and 360-degree swivel. 100 percent polyester upholstery features Nano-tex superior stain-resistance. Stool meets or exceeds applicable ANSI/BIFMA and ISTA performance standards.