Return to the office without forgetting a single thing! Buy Office Chair Ayna S P&C LI840RP Black and be the envy of your colleagues!. Colour: Black. Certificate: Without certification. Seat material: polypropylene. Approx. weight: 8 kg. Wheel material: Nylon. Finish: Cloth. Structure: polypropylene. Backrest: Foam/PVC. Piston: Gas. Mechanism: Synchro. Seat Base: Polyamide Ø 60 cm. Maximum seat height: 59 cm. Minimum seat height: 45 cm. Total width: 59 cm. Recommended daily hours of use: 4–6 hours. Characteristics: Made in EU