The YBIKE Original's unique design includes dual rear wheels and high ground clearance allowing for greater manoeuvrability and a fun safe ride - The dual back wheels also lends the child a small degree of balancing aid while still allowing the child to lean to the side when turning - For Ages 2 -4 years old - Double Rear wheel allows for safe riding while allowing the child to learn the art of balance - The Bike is 85cm long - 45cm high - 30cm wide at the handlebars What's in the box Balance bike for ages 2 to 4 fully assembled