Big wheels maneuver on uneven surfaces. Durable, black powder-coated steel frame. Heavy-duty rubber handgrips. Non-exposed pedal hardware. Recessed no-pinch hub design. Beats the competition with lifetime service and replacement parts. Long-lasting, self-lubricating nylon bearings. Comfort back support. Long-lasting, self-lubricating nylon bearings. Simple assembly. Recommended for Ages 4-8. Seat: 5-1/2"" H. Handlebars: 20"" H.