This 20-inch mountain bike is designed for kids aged 7-10 years or with a rider height of 4'4"-5'6". Built with a durable steel frame, it provides a secure and stable ride on city roads, muddy paths, snow, gravel, and other terrains. The bike features a height-adjustable saddle and handlebar to accommodate growing children, inflatable rubber tires with a suspension fork for excellent impact resistance, and double disc brakes for enhanced safety. Arriving 85% pre-assembled with included basic tools, it allows for quick and easy setup so kids can start riding immediately.