Description: 【Quality materials】: Crafted from quality plastic and metal, this office chair adjustable headrest features a cloth surface with sponge filling, ensuring durability and long time use 【Ergonomic design】: The computer chair head pillow is designed with an ergonomic concave shape to provide comfortable support for your neck during rest 【Flexible usage】: Easily adjust the height and angle of this game chair head rest to suit your needs, enhancing comfort and offering versatile use 【Nice fit】: With dimensions of 28 cmx18 cm/11.02 inchx7.09 inch and a clamp inner diameter of 2.6 cm/1.02 inch, this desk chair attachment is suitable for chair backs with thicknesses ranging from 1.9 cm to 2.3 cm, making it compact and easy to install 【Wide application】: Ideal for various settings such as home, office, dormitory, apartment, living room, or bedroom, this neck support cushion offers versatile support wherever you need it Specification: Material: Plastic Sponge Cloth Metal Size Chart: Total Size: 28cmx18cm/11.02inchx7.09inch Fixing Clip Inner Diameter: 2.6cm/1.02inch Backrest Thickness: 1.9cm/0.75inch to 2.3cm/0.91inch Package Includes: 1pcs Office Chair Adjustable Headrest Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.