Product Bike Wheel Training Wheel Children 12-20 Inch Flashing Stabilizer Children Adult Accessories Light Stabilizer LED Stabilizer Metal Training Wheel for Children Bicycle Features: Material: High Quality Metal, Beginner It is safer, more stable, lighter and less noisy. Protection: Make sure your child is safe when learning how to ride, so that your child can balance on two wheels and start with confidence. Function: Provide anti-slip, wear-resistant and stability, help children ride bicycles, let children enjoy the fun of riding bicycles. General: The size of the training wheels is adjustable, suitable for 12-20 inch children's single speed bicycles. Easy to install: Everything needed for installation is included. Specification: Material: Metal Weight: 670g : As the picture shows Color: Red/Purple/Green/Blue/Pink/Black Package Contents:1 set of bicycle wheels Notes: 1.Due to manual measurement, please allow 1-2cm discrepancy. Please make sure you do not mind before ordering. 2.Due to differences between monitors, the photo may not reflect the actual color of the item.