Brand: Edison Brain Features: Adjustable Color: Black Size: Free Material: Air Shape: Semicircular 【Your Own Pillow in the Car!】 This model features a rotating cushion mechanism and adjustable height! The left and right sides can be adjusted from 16cm to 28cm, allowing you to freely adjust the angle and position to suit your height, sitting height, and shoulder width. When not in use, you can flip it up for storage without obstructing your view. 【Turn Car Travel into the Ultimate Relaxation Space】 Have you ever experienced neck pain after sleeping in the car? A poor sleeping angle can actually cause fatigue. By using our headrest cushion, you can improve the quality of your sleep and enjoy a relaxing travel time. 【Compatible Vehicles】 Installs on headrest stays (support posts) without tools. It can be installed on vehicles 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 posts are thin, use the appropriate size adjuster to adjust. 【Product Specifications】 Material: PU leather x high-rebound urethane foam. Set Contents: Headrest mounting part x 1, Cushion part x 2, 2 types of adjusters x 2. 【Warranty】 365 days. *1 Please refrain from using it in the driver's seat as it may narrow your field of vision and interfere with driving. *2 Scheduled to be published in Rurubu Aomori (scheduled for release in December 2025).