Return to the office without forgetting a single thing! Buy Office Chair with Headrest P&C Horna Bali Dark grey and be the envy of your colleagues!. Type: Lumbar backrest. Chair with Armrests: Adjustable. Material: Leggings. Colour: Dark grey. Approx. weight: 20 kg. Wheel material: Rubber. Seat material: PVC. Certificate: UNE EN 1335. Structure: Nylon. Piston: Gas. Mechanism: Synchro. Seat Base: Ø 60 cm. Maximum seat height: 57 cm. Minimum seat height: 50 cm. Total width: 68 cm. Recommended daily hours of use: 24 hours. Minimum Total height: 124 cm