Children s design: Provides stable training wheels for early riders and the quick-release seat simplifies height adjustment. Minimal maintenance: The durable steel frame is made of high-quality steel and can withstand the hardships of learning Because of its simple design the bike requires little maintenance. Manufacturered by Axdwfd. Protection measures: The chain guard can protect the chain well Compared with other bicycles it has a longer service life When you try to touch the chain your child will not be injured. Easy to install: Kids bicycle is equipped with 95% pre-assembled body and basic assembly tools if you have any questions about assembly or bicycle please contact us. This sporty bike for boys and girls comes with training wheels and a quick release seatpost which makes it easy to adjust the height of the seat .