【Quality materials】: Crafted from quality plastic and metal, this office chair adjustable headrest features a cloth surface filled with sponge for durability and long time use 【Ergonomic design】: The computer chair head pillow is designed with an ergonomic concave shape to provide comfortable neck support during rest periods 【Flexible use】: Easily adjust the height and angle of this lift chair head pillow to suit your needs, enhancing comfort and offering versatile applications 【Nice fit】: Measuring 28 cmx18 cm/11.02 inchx7.09 inch, the game chair head rest is suitable for chair backs ranging from 1 cm/0.39 inch to 1.9 cm/0.75 inch in thickness, featuring a compact structure that is easy to install 【Wide application】: The work chair neck support cushion is ideal for various settings such as home, office, dormitory, apartment, living room, or bedroom environments Specification: Material: Plastic Sponge Cloth Metal Size Chart: Total Size: 28cmx18cm/11.02inchx7.09inch Fixing Clip Inner Diameter: 2.2cm/0.87inch Backrest Thickness: 1cm/0.39inch to 1.9cm/0.75inch Package Includes: 1pcs Office Chair Adjustable Headrest Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.