NYLON BACK WITH INJECTED FIRE RETARDANT MESH ADJUSTABLE LUMBAR SUPPORT ADJUSTABLE ARMS (UP/DOWN ) WITH P.P PADS NYLON BASE WITH NYLON WHEELS SYNCHRO TILT WITH SINGLE POSITION LOCKING CLASS IV SAMONGSHA GAS LIFT HIGH DENSITY PU FOAM SEAT FIRE RETARDANT FABRIC FOR SEAT COLOUR : BLACK ASSEMBLY : DO IT YOURSELF. DELIVERY TIMELINES : FOR BANGALORE 7 DAYS & OUTSTATION 14 WORKING DAYS. WARRANTY : 1 YEAR ON MANUFACTURING DEFECTS FROM PLANT.