This sturdy, sleek trailer bike is a great way to show your kids the rules of cycling. Made with aluminum, it has a steel hitch with quick-release system that fits most seat posts. The single-wheel design includes a large safety flag and comfort-grip handles. For kids ages 4-8 years old . Single speed 20 in. wheel folding model with aluminum frame . Fits nearly all 26 in. and 700c bikes . Proven steel hitch with quick-release system fits most seatposts . Safety flag, full coverage chain guard and splash guards . Weight capacity of 100 pounds . 62 in. L x 22 in. W x 41 in. H Great way to teach children the rules of cycling, while keeping them close and safe. Parent rider has total control of steering, braking, speed and balance. Your son or daughter can pedal to help you along or just coast and enjoy the scenery.