Material: Base - Polished aluminium, anthracite plastic. Seat and back cushion - High quality moulded Polyurethane foam Seat, back and headrest cushion fabric composition – Polyester(100% Trevira cs) Finish / Colors: Base and Back: Black, Polished aluminium parts, anthracite plastic Seat and back cushion: Green Black (5313 Step Melange), Grey Black (5315 Step Melange), Grey (5316 Step Melange), Dark Blue (5317 Step Melange), Dark Grey (5329 Step Melange), Black (5300 Step) Features: - 5 Star Base - Point synchromatic mechanism with sliding tension control. - Free flow recline and 4 position lock. - Forward tilt - Gas lift with integral damping facility - Height-adjustable backrest with patented Pendolo effect dynamic ergonomic mechanism. - Polished aluminium mechanism, sub frame and 5-star base with load-controlled twin castors - Tension adjustment 45 - 120 kg. - Seat & Back Cushion: Gabriel Step/Step Melange Fabric Size: Without headrest: Width: 110 cm Depth: 73 cm Height: 73 cm Seat Height: 40 - 52 With headrest: Width: 127 cm Depth: 73 cm Height: 73 cm Seat Height: 40 - 52 Lead Time: 3 - 4 weeks. Note: If headrest option is selected, headrest will have the same fabric finish of seat and back cushion.