This rear bike seat backrest is designed to provide extra comfort and support for passengers. The cushioned seat and backrest ensure a pleasant ride, making it for carrying children or other passengers. The universal fit makes it easy to attach to bicycles, making it a practical and convenient accessory. Features -Color:Black -Material:ABS, Stainless steel -Size:21.00X15.00X12.00cm/8.25X5.89X4.72in -Comfortable riding: delivers excellent back support to minimize fatigue and enhance comfort during long rides -Anti slip backrest: equipped with anti slip material to ensure the backrest stays in place, providing a secure ride -Breathable design: promotes airflow to reduce sweating and keep your back dry and comfortable -Quick and easy setup: features a simple installation process that can be completed in a few easy steps -Versatile fit: compatible with electric bikes, and standard bicycles, catering to different needs Package list: 1 x electric car backrest