Wider Use Ages: 10m-4yrs Old. This upgraded kids tricycle has an enlarged body size so that can be used for a wider range of ages. One besrey toddler bike can meet your kid's all requirements at different ages, help your baby quickly learn to ride. The best first bike for your baby Upgrade 5-IN-1: 1:Tricycle without pedals (learn to walk) 2: Baby walker without pedal (learn to walk stage 2) 3:Tricycle with pedals (learn to ride) 4: Baby walker with pedals (Learn to ride stage 2) 5: Balance bike without pedals (for sliding) Double Care: We specially adopted a Curved Carbon Steel Frame Structure + No Edges Design, which can buffer the transmission of vibration and minimize the risk of injury during riding, so as to better keep th... .