Product detailsDear customers, welcome to my store. We are an online store where you can purchase all your electronics, home appliances, kiddies items, fashion items for men, women, and children; cool gadgets, groceries, automobile parts, and more on the go. Our store is a dedicated to creating high-quality and , allowing you to enjoy a . Your support is our greatest driving force. All the our store are sold at the lowest price, and the quality is guaranteed. If you need it, please rest assured to buy, we will provide you with a comfortable shopping experience every time. As are launching new products every day, please follow our store and pay more attention, you will get the information of our latest products as soon as possible. Clicking on the seller information to enter our what you needs, after placing an order, we will deliver the goods for you at the frist time. Thank you and have a nice day!Description:Steel chassis:Control the back of the backrest and the lift of the seat cushion to meet the needs of different sitting postures. The hardness of high strength alloys is guaranteed.Function: backrest lift adjustment knob, back adjustment handle, lift adjustment handleEasy to Remove and Install: even non professionals can install this accessorySolid Interface:Connect the air, let you sit more at easeReplacement Mechanism Tilt Control: Fits most gaming, executive and office swivel chairsSize Chart:30cm/11.81inchPackage Includes:1??Chair Replacement?Note:Please allow slightly errors due to manual measurement and different monitors.Base Plate Replacement;Heavy Duty Replacement Chair Swivel Tilt Control;Adjustment Backrest Tilt Seat Mechanism;Chair Swivel Tilt Control Seat Mechanism Base; Chair Base Bottom Plate Base Cylinder;Chair Base Plate Tilt height Adjustable