Kinderbike Silver Mini Laufrad - Ages 18 Months - 4 Lightweight Rust Proof All Aluminum Frame - No Plastic Parts Air Tires with Metal Spokes Linear-pull, rear brake included! The best braking system for young riders Adjustable Seat Height from 11" to 16.5" for childs inseam of 12" to 17.5" Handlebar adjusts up-down & forward-back to allow for a custom fit for your child