Return to the office without forgetting a single thing! Buy Office Chair Leganiel Piqueras y Crespo C840B25 Black and be the envy of your colleagues!. Colour: Black. Structure: PVC. Wheel material:. Rubber. Nylon. Seat material: PVC. Finish: Cloth. Hours of use: 8 hours. Characteristics: Armrest Fixed. Backrest: Foam/PVC. Piston: Gas. Mechanism: Synchro. Maximum seat height: 57 cm. Minimum seat height: 42 cm. Total width: 66 cm