BIG & TALL MESH ERGONOMIC CHAIR HAS HEAVY DUTY CONSTRUCTION THAT ALLOWS IT TO SUPPORT USERS UP TO 450 LBS. BREATHABLE MESH BACK AND THICKLY PADDED BLACK MESH FABRIC SEAT FOR ADDED COMFORT. STURDY ALUMINUM BASE ON THESE BIG & TALL MESH OFFICE CHAIRS HAVE AN ATTRACTIVE GUNMETAL FINISH AND FIVE DUAL WHEEL CASTERS FOR EASY MOBILITY. 21-5/8""W X 19-5/8""D SEAT AND 22-3/4""W X 27-1/8""H BACK. 18-1/2"" TO 21-1/4""H PNEUMATIC SEAT HEIGHT ADJUSTMENT. EASY ASSEMBLY. BRAND IS INTERION BY GLOBAL INDUSTRIAL. 1 YEAR LIMITED WARRANTY. WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov -