Description: Enhanced Comfort: This saddle seat features a thickened hollow backrest design, providing comfort and breathability. It is suitable for bicycles, tricycles, electric bicycles, and electric scooters.Backrest Design: The saddle backrest offers a larger feeling for added comfort during your ride With a 5cm thick soft backrest that can reach up to 20cm in width, it closely fits your back for enhanced comfort.Adjustable Height: The height of the backrest can be adjusted to meet the needs of different groups of people. Its large knob adjustment is more reliable and secure.Sturdy Construction: Designed with a steel reinforced base for increased load bearing and enhanced base design for safe riding experience.Product Details: Made from PU leather material with product dimensions of 33cmx30cmx8cm/12.99inchx11.81inchx3.15inch for the seat cushion and 23cmx20cm/9.06inchx7.87inch adjustable up to 10cm height for the backrest. Package Includes: 1 Bike Seat with Backrest 1Installation Tools Kit Note: Please allow slightly errors due to manual measurement and different monitors.