Description: Ergonomic Design: This bicycle saddle is designed with ergonomics in mind to provide you with the utmost comfort. The wide seat cushion and supportive backrest ensure a comfortable posture while riding, allowing you to relax fully.Adjustable Backrest: The bike seat features an adjustable backrest that can meet your different needs, offering you a comfortable experience.Compatibility: This bike saddle is suitable for bicycles, tricycles, and electric bike, allowing you to enjoy cycling easily and happily.Easy Installation & Stylish Design: This comfortable bicycle seat with a backrest is easy to install and has a stylish design, making it the great addition to the rear seat of your electric bike.Product Details: Made from PU leather material for durability and comfort. The product dimensions are?30cmx24cm/11.81inchx9.45inch for the seat cushion, 20cmx22cm/7.87inchx8.66inch for the backrest, and an adjustable height of 29cm-39cm/11.42inch-15.35inch. Package includes a bicycle seat cushion, two installation tools, and an installation manual. Specification: Material:?PU Leather Size Chart: Bicycle Seat Cushion 30cmx24cm/11.81inchx9.45inch;Backrest?20cmx22cm/7.87inchx8.66inch, Adjustable?Height 29cm-39cm/11.42inch-15.35inch Package Includes: 1 Bicycle Seat Cushion2 Installation Tools1 Installation Manual Note: Please allow slightly errors 1-2cm differences due to manual measurement.