The rear seat cushion for mountain bikes and electric bikes features a durable and thickened design, making it ideal for carrying passengers. Its soft padding offers excellent shock absorption. This cushion is for those who frequently transport passengers on their bikes. Features -Color:Black -Material:Fake , sponge, plastic -Size:31.00X14.50X4.50cm/12.18X5.70X1.77in -Enhanced comfort: the thickened rear rack seat board offers enhanced comfort, making your rides more enjoyable and less tiring -Universal fit: compatible with a wide range of electric bikes, ensuring a fit for your bikes -comfort cushioning: the soft cushion offers cushioning, providing maximum comfort for the rider -Multipassenger design: capable of accommodating multiple passengers, ideal for family trips or group cycling -High durability: made from durable materials, this seat board is designed to withstand regular use and last for years Package list: 1 x rear seat cushion