OT3127 Features: * Faux leather seat with built-in lumbar support * One touch pneumatic seat height adjustment * Locking tilt control with adjustable tilt tension * Nylon flip up arms * Heavy duty nylon base with dual wheel carpet casters * Easy to assemble Dimensions: * Seat dimensions: 20""W x 20""D x 4""T * Back dimensions: 22""H x 19.75""W * Seat travel: 17.25"" - 21""H