Attention - Please make sure the car seat has a metal rod that can move up and down before purchase. The main lever of the 2 side headrest connection is adjustable from 2inch to 7inch. We provide 7*24 hours customers service, if you have any installation problems and quality issues, please feel free to contact us. Easy to Install - The u shaped car headrest pillow does not require any tools. You can install it with your child in a few minutes and it will be a fun family craft activity. Please watch the installation video if there's any question about installation. Safe & Durable - This car seat headrest pillow has passed the authoritative security test in US and the roadpal headrest is made of premium leather and thickened memory foam. Slow rebound, no odor and is easy to clean. Adjustable Design - This road pal headrest supports 180° rotation for a variety of heights. Suitable for children and adults of different heights, just lift the headrest pillows up to save space when not in use. Enjoy Nap in Road Trip - This car seat headrest is suitable for most car seats with metal poles, make sure the width is between 2''- 7''. This road pal headrest provide your kids and family a good sleeping posture in the car, no more worry about the head hitting the car door window.