Return to the office without forgetting a single thing! Buy Office Chair P&C B10CRNC Dark grey and be the envy of your colleagues!. Material:. Polyamide. Wood. Structure: PVC. Colour: Dark grey. Wheel material: Nylon. Backrest: Polyamide. Piston: Gas. Mechanism: Synchro. Maximum seat height: 56 cm. Minimum seat height: 42 cm. Total width: 61 cm. Minimum Total height: 120 cm. Type: Office Chair with Headrest. Characteristics: 360º rotation