Ergonomic Office Chair with N Type Lumbar Support and Adjustable Headrest-Black

-46"-50" adjustable height is designed for people of different heights-With a 360 swivel seat for convenient conversations in different directions-With 2-level reclined backrest, 107 for working & 133 for relaxation-Height of the customized headrest with 3.5" adjustable range for different needs-Flexible armrests with 4" adjustable range & also allow for 9 positions-Spacious ergonomic backrest with a scientific design to relieve your back fatigue-N type adaptive waist support for dynamic support to relieve sedentary discomfort-Boasts a waterfall seat to reduce pressure, allowing you to sit more comfortably-Wrapped with elastic mesh fabric that is breathable, wear-proof & long-lasting-Filled with high-density sponge, which is ultra-soft for comfortable touch-Fitted with an adjustment lever for easy "Up", "Down", "Free" & "Lock"-Supported by a stable gas rod & a stable 5-claw base for high stability-Features PU universal wheels for easy moving, which is easy to install-Effortless installation is ensured by the easy-to-understand manual

Color: Black Material: Mesh, Sponge, Nylon, PU, PA Overall Dimension: 28.5" x 28.5" x 46"-50" (L x W x H) Size of Headrest: 13.5" x 6.5"(L x H) Size of Backrest: 19.5" x 24" (L x H) Height of Each Armrest: 5"-9" Length of Each Armrest: 9.5" Inner Armrest Spacing: 19" Outer Armrest Spacing: 27" Size of Seat: 20" x 20" (L x W) Height of Seat: 17"-21" Max Load Capacity: 355 lbs Net Weight: 30 lbs Package Includes: 1 x Computer Chair 1 x User Guide