Frame, natural beech Optional: frame, stained beech Upholstered seat and back with protective foil Removable seat and back cover Legrest covered with Roy-Tex Optional: folding legrest Steel parts powder coated, available in RAL 3007 black red, RAL 5003 sapphire blue and antracite 95 Gas spring Optional: viscous-elastic foam Optional: connecting piece (for tray 7290/8 or infusion holder) Optional: plastic or felt glides