Smart Gear Gogo! Balance Bike Eco-Friendly: Made with wood harvested from a replenishable source, strictly using Non-Toxic Paints, Dyes and Lacquers and Formaldehyde Free Glue. Adjustable seat height from 14"-17" to grow with your child Limited steering radius to prevent jackknifing Pneumatic Street Runner Rubber Tires with extra long tube valves Rubberized handle bar grips Rubber handle bar grips and pneumatic, spoke-less tires Limited steering radius to prevent jack-knifing