New and unopened. The Schwinn Kids Bicycle Training Wheels are designed for 12"-20" bikes, making them suitable for both boys and girls. Made of durable plastic and steel, these training wheels feature a black color and are ideal for indoor and outdoor use. With a high durability and beginner level experience, these training wheels from the trusted brand Schwinn are perfect for children looking to balance and learn cycling skills. This set includes one pair of training wheels, providing stability and support for young cyclists as they develop their biking abilities.