Price $55 to $650 (2) Weight (Approximate) 13.15 kg (1)13.61 kg (1) Seat Feature UpholsteredHeight AdjustmentPneumatic Adjustment (1)UpholsteredPneumatic AdjustmentHeight Adjustment (1) Product Model OTG11320B (1)OTG11510B (1) Minimum Seat Height 17.5"" (1)18"" (1) Maximum Seat Height 20"" (1)21.5"" (1) Height 35.5"" (1)39.5"" (1) Features BreathableUpright LockingTilt LockTilt TensionArm Height AdjustmentDual Wheel CasterCarpet CasterContoured CushionCenter TiltTension Adjustment (1)Tilt LockScuff ResistantTilt TensionContoured CushionArm Height AdjustmentCenter TiltUpright LockingDual Wheel CasterCarpet Caster (1) Environmental Certification GREENGUARDGREENGUARD Gold (1)GREENGUARD (1) Depth 21.5"" (1)24"" (1) Back Type Medium Back (1)Mid Back (1) Back Material Mesh (1)Mesh Fabric (1) Width 23"" (1)25"" (1)