Brand: Edison Brain Features: Adjustable Color: Black Size: Free Material: Air Shape: Semicircular 【Transform Car Travel into the Ultimate Relaxation Space】Have you ever experienced neck pain after sleeping in the car? Poor neck angle during sleep can actually lead to fatigue. By using our headrest cushion, you can improve the quality of your sleep and enjoy relaxing travel time. 【Adjust Position and Angle to Your Liking】The left and right sides can be adjusted from 16cm to 28cm, allowing you to freely adjust the angle and position to match your height, sitting posture, and shoulder width. Vertical adjustment is also possible, and you can store it by flipping it up when not in use. 【Compatible Car Models】Installs on the headrest stay (support post) without tools. It can be installed on car models with a stay width of 7.5cm to 19.5cm. Even women can easily attach and detach it. 【Installation Method】1. Remove the headrest from the seat. 2. Adjust the width of the slide bar on the mounting part to the headrest stay and attach it. 3. Insert the cushion into the mounting part and attach the headrest to the seat to complete the installation. *If the headrest stay's support post is thin, use a size-appropriate adjuster to adjust. 【Product Specifications】Size: Cushion H22 x D13 x W4cm Material: PU Leather Set Contents: Headrest Mounting Part x 1, Cushion Part x 2, 2 types of adjusters x 2