GB3121 Features: * Chair * Back height, seat depth and Soft Descent pneumatic seat height adjustment * Automatically adjusts reclining tilt-tension * Multiple position tilt lock * Live lumber support is incorporated into the back design which is height adjustable via a concealed ratchet system * Side activated sliding seat depth adjustment is standard on for Mutil-Titlers and Synchro-Tilters * Easy to obtain exactly the right seat height you desire * G5 lockable arm caps are height, depth and width adjustable to suit user preference * Armcaps also articulate inwards and outwards 30° to aim toward the keyboard or mouse arena * Height adjustment: 2.25" * Seat depth adjustment: 2" Dimensions: * Overall dimensions: 42" H x 25.5" W x 24" D