Feature:1. Fast Riding: Tires can roll quickly, high traction tread, faster and more comfortable ride.2. Patterned Surface: Provide good grip on uneven roads, such as asphalt roads or sidewalks.3. Children's Bicycle Tires: Checkered pattern, stylish appearance, sporty, and extremely flexible tires.4. Thicker Rubber: Natural rubber accounts for a larger proportion of weight, making tires lighter and more wear resistant.5. Understand Tire Model: Specifications marked on the side of the tire 12x2.125in: 12in refers to tire diameter, 2.125in tire width, recommended to match 12x2.125 inner tubes, and so on.Specification:Item Type: Children's Bicycle TiresColor: As Pictures ShownMaterial: Natural RubberHow Do I Know My Tire Model? Specifications Marked on the Side of the Tire 12x2.125in :12in Refers to Tire Diameter2.125in Tire WidthRecommended to Match 12x2.125 Inner Tubes, and So On40P.S.I(275KPa)(2.75BAR).Package List:1 x Children's Bicycle Tires