KinderBike NEW E Series No-Pedal Balance Bike Limited Lifetime Warranty - absolutely the best warranty in the industry! Perfect size and weight! At just 5.6 lbs, it is by far the lightest trainer available so it is easily controlled by the smallest of children. Quick-release seat adjust - no tools needed! Includes two seat posts giving it the greatest adjustment range in the industry - from 11" to 18" - perfect for children 18 months to 5 years old Quick-release handlebar adjust - no tools needed! Soft "Sure-Grip" handlebar grips pefect for little fingers Custom-welded, alloy steel tubing with performance frame geometry and low step-through for small legs