Our product is a practical, safe bike backrest. It is needed when you find the back seat of your electric bike is dangerous to carry a young child. For your child's safety, this backrest is exactly what you are looking for. It is easy to adjust to any bike rack. It can be used on standard back seat and universal for most bike. Features -Color:Black -Material:Plastic,Steel,Sponge -Size: 24.00X17.50X13.00cm/9.43X6.88X5.11in - This practical backrest can provide the necessary protection for your kids when they sit on the back seat. - With thick and cushion inside, ergonomic design, this backrest will provide flexible support and protect for your waist, and helps reduce fatigue. - The backrest is designed compact and easy to install, it can also easy to clean and maintain.A replacement for your bike backrest. - This back rest is suitable for most of the bikes, electric bikes and motorcycles, to give you comfort riding in daily life. - Adopts precision production to the stable characteristics and high reliability. Package list: 2 x Backrests