?Designed for Children?- Glerc Starry kids bicycles are designed specifically for early cyclists who have just learned how to ride bicycles. The accompanying training wheels of corresponding sizes provide stable support for cycling; The height adjustable saddle can perfectly adapt to the growth of children. ?Reliable Quality?- Glerc Starry kids Bike's frames are made of high-ten carbon steel, which will not bend or break even when riding on bumpy roads. Provide the most basic safety guarantee for your child while cycling. This bicycle has high integrity, simple design, and requires minimal maintenance. We also provide a limited lifetime warranty for this sturdy frame. ?Safe and Durable?- The reliable coaster brake system is more suitable for young riders who may not have enough strength to operate hand brakes. The chain guard protects the chain, prolonging the bike's lifespan and preventing any injuries caused by touching the chain. The 14 x 2.4 inch wide tires provide excellent grip to prevent slipping during rides. ?Easy to Install?- The bike is 85% assembled and comes with the basic assembly tools, only a few parts need to be added to the bike, will take about 20 minutes. ?Check the Size?- The 12" bike is designed for children aged 2-4 or 33-37 inches tall, the 14" bike is suitable for kids aged 3-5 or 35-43 inches tall, the 16" bike is designed for children aged 4-7 or 38-50 inches tall, the 18" bike is designed for children aged 5-10 or 42-55 inches tall.