Specifications: Material: Alloy Size: As shown in the picture, several sizes are available Package list: 1 x Bicycle kickstand 1. This upgraded kickstand for children's bicycles is made of thickened aluminum alloy. 2. Our bicycle kickstand is suitable for 12, 14, 16, and 18-inch children's bicycles or balance bikes. Choose the appropriate size according to the measurements marked on the wheel. 3. Each bicycle kickstand is equipped with non-slip feet to increase friction with the ground and ensure better stability. 4. The kickstand has a built-in spring design, so you don't have to worry about your hands or feet getting pinched. The thickened material is sturdy and durable. 5. This kickstand for children's bicycles is easy to install, making parking more convenient and tidy. Once your child has mastered their riding skills, you can simply replace the training wheels with this kickstand.