If you're looking for an easy to adjust office chair than this triple paddle chair is an excellent choice. Mesh office chairs can keep you more productive throughout your work day with its comfort and ventilated design. The mid-back design offers support to the mid-to-upper back region. The locking back angle adjustment lever changes the angle of your torso to reduce disc pressure. The contoured seat dissipates pressure points for greater comfort. Chair easily swivels 360 degrees to get the maximum use of your workspace without strain. The pneumatic adjustment lever will allow you to easily adjust the seat to your desired height. The adjustable armrests take the pressure off the shoulders and the neck, which minimizes the risk of pain. This comfortably designed computer chair will make a great option for your home or office space. HL-0001-GG Color Black Finish Black Nylon Upholstery Black Mesh Made of Foam, Mesh, Metal, Plastic Contemporary Task Chair Mid-Back Design Flexible Mesh Back Material Built-In Lumbar Support Triple Paddle Control Mechanism Back Height Adjustment Back Adjusts 2'' up and down Infinite-Locking Back Angle Adjustment Multi-Tilt Lock Mechanism Tilt Tension Adjustment Knob Padded Black Mesh Upholstered Seat Swivel Seat Pneumatic Seat Height Adjustment Height Adjustable Padded Arms Heavy Duty Nylon Base with Silver Accents Dual Wheel Casters CA117 Fire Retardant Foam Capacity 250 lbs. Some Assembly Required Warranty Info 2 yr Parts Overall Dimensions 25.75 W x 27.50 D x 36.75 43.50 H Seat Dimensions 19 W x 17 D Back Dimensions 17.50 W x 19 H Seat Height 18 23 H Arm Height from Floor 27 31.75 H Arm Height from Seat 7.75 10.25 H