🚴♂️ Ride with Confidence: The Ultimate Stabilizer for Young Cyclists! Compatible with all single-speed bikes from 14 to 18 inches. Quickly mounts to your bike with minimal tools required. Helps young riders gain balance and confidence without parental assistance. 5-inch diameter plated steel wheels provide superior balance support. Crafted from durable metal and rubber for long-lasting use. Fits 14-18 inch bikes Heavy-duty metal Safety first The Little World Training Wheels Heavy Duty Rear Wheel Bicycle Stabilizers are designed for children's bikes ranging from 14 to 18 inches. Made from robust metal and rubber, these stabilizers feature 5-inch diameter plated steel wheels that enhance safety and balance for young riders. They are easy to install and provide the necessary support for children to learn cycling independently.