DXRacer OH/IS132/N Office Chair Iron Series, Black High Quality Comfortable Design with Headrest and Lumbar Cushions Largest Seat in DXRacer Chair History Patent Race Car Seat Design with Higher Backrest to Support Neck and Spine Comes with 2 Gas Cylinders You Can Change Any Time Perfect as Home Office, Computer, Business Executive or Gaming Desk Chair Weight: 30.00 kg / 66.14 lb ; Armrest Pad Size :10.6"L x 3.9"W 90 4D Arms,Multi-functional Mechanism,Strong Aluminium Base,Strong Mesh,3" PU Casters Maximum Seat Height :22" , Minimum Seat Height :19" , Maximum Arm Height :	32" , Minimum Arm Height :26" , Backrest Height :	33" ,Backrest Shoulder Width :22" Adjustable Back Angle :	135 , Adjustable Lumbar Cushion :Yes , Adjustable Headrest :Yes