Strider ST-3 PREbike (Yellow) PREbike Balance Bike for Toddlers Ergonomically designed for Toddlers. Small grips and seat for small hands and legs. Patented frame design features Launchpad Footrests for many years of skill development. Never fill, puncture proof tires make Strider maintenance free for parents. Sizing: Adjustable handlebar and seat height to fit riders from 30" to 44" tall (saddle height adjusts from 11" to 16" from ground)