ECVV Office Chair, Ergonomic Desk Chair with Adjustable Height and Lumbar Support Swivel Computer Chair Flip up Armrests for Conference Room1, Cash on Delivery 2, One Year Warranty 3, Express Shipping (1 3 Days) 4, Height Adjustable and 360 swivel [SHORTDESCRIPTION] NOTICE: If you want to combine colors, you can contact our customer service FEATURES: [Maneuverability]: Our office chair is equipped with a heavy duty steel base and smooth rolling casters, which guarantees saftey and stability. The casters have passed a 300LB impact test. Plus, the 360 swivel enhances your mobility in your