Product features The KTZY-3 construction seat is mechanical suspension structuredriver seat, there is a rubber cover dustproof protectionon the bottom socket which make it easy cleaning .Streamline curved surface makes it aesthetics, generous and comfortable .It is a kind of multifunctional adjustable seat with various optional accessories . Technical parameters 1.Mechanical suspension 2.Deluxe adjustable armrest 3.Lumbar support 4.Total height:1170mm 5.Width of cushion:510mm 6.Width of backrest:480mm 7.Height of cushion:420mm 8.Headrest adjustment:80°,75mm 9.Tilt and height adjustment:±12,60mm 10.Fore and Aft adjustment:175mm 11.Weight adjustment:50kg-130kg 12.Shock absorber stroke:80mm 13.Back angle adjustment:-60° 80° 14.Skin material:PVC or fabric 15.Mounting hole size:216×310×4-Ø11 Optional accessories Headrest Armrest Seat belt Lumbar support