1, Long usage: from 1 year to 5 years old. 2, Functional:4 in 1 model.3, Easy to convert from tricycle to balance bike to enjoy fun.4, Adjustable front handle to meet child's needs.5, Collectable pedal, simple and convenient.6, It can be used in conjunction with the walker to exercise the baby's coordinated movement ability.7, Stable and safty structure to protect your child.8, Adjustable seat height to fit for child.