The Joovy Bicycoo GT won designs awards at Europe"s largest trade show. Simple put it is the best looking, best functioning balance bike on the market! The frame is made of aluminum so it is strong and lightweight just like high end bikes. The lightweight frame makes controlling the bike much easier for kids, unlike the heavy wooden and steel versions. The tires are pneumatic and refillable. Many balance bikes on the market use EVA plastic tires which are cheaper and wear out much quicker than these rubber tires used on the Joovy Bicycoo GT. The suspension qualities of pneumatic tires give kids a much smoother ride. The wide 2.25 inch tires on the Bicycoo GT provide more stability for the child. There is also a hand brake for the rear tire. When you combine the high quality of the Bicycoo GT with Joovy"s great customer service, you can"t go wrong with this bike. You"ll love the look on your kids face when they finally figure out how to balance and ride with no feet touching the ground! The seat is height adjustable for a perfect fit. The bike has 12" tires and the overall dimensions are 33.50L x 16.25W x 21.50H. The weight is 8.75 lbs.