The Bell Spotter 300 E-Z Trainer Training Wheels are designed to fit 12" to 20" wheels, making them versatile for various sizes of bicycles. Made by Bell, these training wheels include mounting hardware and instructions for easy installation. Ideal for cycling enthusiasts of all ages, these E-Z Trainer training wheels provide stability and support for new riders learning the basics of cycling. Made in Taiwan, these modern training wheels are a must-have accessory for any cyclist looking to improve their skills and confidence on the road.