1.Sturdy and : Its frame is made of tough high-carbon steel for enhanced load-bearing capacity, and the seat cushion is made of high-quality plastic, polyethylene foam, and polyurethane so that you can experience a comfortable ride for a long time 2.Comfortable Ride: The bike seat with backrest has a wider and larger cushion to help reduce pressure on your hips while riding, plus its foam-filled saddle and soft PU surface make your ride more comfortable. Its seat cushion has a concave-convex ergonomic design, so you won't feel fatigued even after sitting for a long time 3.Adjustable Backrest: The scooter seat with backrest can be adjusted according to your needs with the knob on the back of the backrest, adjusting the backrest up and down in a range of 0-12 cm/0-4.72 inches, dedicated to creating a more comfortable experience for you 4.Ideal Replacement Seat: Whether you need a replacement seat for your tricycle or another wide and soft bike saddle, this seat is a good choice for you