Our Children Deserve the Best: Premium grade kid’s bike made for boys and girls with top of the line safety. The Segway Ninebot 18 inch kids bike is easy to operate and comfortable to ride for children 5-10 years old with the height of 3'9'' - 4'9''. Double Protection: The coaster brake works on rear wheel, the hand brake on the front. Plus, rim-brakes are adjustable to fit your kids’s hands. Fully-enclosed bicycle chain protects little ones from potential scratches, the ride is smoother and quieter. Safe & Comfortable Riding: Suspension on the front wheel maximizes riding stability. Refined design of bearing system remarkably reduces friction for effortless operation. Full coverage with soft silicone to offer extra protection. Easy to ride: Inflatable mountain tires, wear-resistant, non-slip and shock absorption, easy to deal with complex terrain. Ergonomic and adjustable saddle allow kids bike to grow with our child. Easy to assemble, please refer to the manual for details. Design for Young Rider: Aerospace Grade aluminum alloy frame with discreet PU form makes it sturdy lightweight and portable. Streamline and minimalist design with adult bicycle craftsmanship for top quality. Please take the kids height into consideration. Brake Style: Front: disc brake, Rear: coaster brake Suspension Type: Suspension on the front wheel