The smarTrike 3-in-1 Multi-Stage Toddler Tricycle is designed to grow with your little boy or girl from the age of 15 months old to over 36 months old. This toddler tricycle helps your child develop important skills as they age. A parent push handle lets you guide your child as they learn to ride the trike. From 15 to 24 months, the bike will help your child develop important balance and motor skills. They are encouraged to be curious and free to explore - so long as a parent has a grip on the handle so that you can guide them safely. Effortless Touch Steering technology lets you control the trike ride as you and your child enjoy some outdoors time. From 24 to 30 months old, your child will be able to start using the pillows. Use the control button so your kiddo can cycle and steer. Once your little one is 30 to 36 months old, you will be able to safely remove the parent safety handle and let your child peddle where they want. With its adjustable design, the smarTrike provides plenty of fun and learning for your child as they grow.