About this item Original Office Chair With Good Lumber Back Support Suitable For All Purposes For Long Day Siting. Netted Fabric Used For Back And Netted Foam Fabric For Seat Which Enables A Person To Sit Without Sweating For Long Sitting Hours. Revolving office chair with many Comfort adjustable features he Chair Is Packed & Dispatched In Semi Pre-Assembled Condition Further Assembly Is Very Easy & No Tool Is Required Pl. See Assembly Instructions In Images. Office chair with pneumatic gas lift for height adju.