China Children's Bicycle factory Unit weight: 10kg Material: high carbon steel Optional size: 12 inch, 14 inch, 16 inch, 18 inch, 20 inch Optional speed: single speed, 21 speed Painting: Logo can be customized, inside the painting Wheel type: spoke wheel, foldable Propulsion method: chain, Frame type: hard frame, Pedal type: ordinary pedal, Suitable age: 2 years old and above, Flashing auxiliary wheel, reinforced four-nail handle, environmentally friendly rubber wear-resistant tires Applicable weight: 鈮?00kg Applicable people: children, internal wiring, hydraulic brake, aluminum alloy rims, aluminum alloy handlebars Applicable terrain: road Optional tires: kenda tires, Magis tires, 12-inch body length is 93cm, wheel diameter is 30cm, seat height is 60cm, handlebar height is 70cm 14-inch body length 105cm, wheel diameter 35cm, seat height 64cm, handlebar height 75cm 16-inch body length 115cm, wheel diameter 40cm, seat height 69cm, handlebar height 80cm 18-inch body length 120cm, wheel diameter 45cm, seat height 71cm, handlebar height 85cm 20-inch body length 125cm, wheel diameter 50cm, seat height 76cm, handlebar height 90cm Color: red, blue, pink Model: Folding children's bicycle c28China Children's Bicycle factory website:http://www.sgbmountainbike.com/children-s-bicycle/