Honestly, there are better ways to teach a child how to ride a bike -- mainly using a balance bike, which (in a pinch) you can improvise simply by taking the pedals off your child's bike and instructing him/her to scoot along, like Fred Flintstone would. That approach teaches balancing much better, whereas training wheels like these don't actually teach it.
But if you still want to use training wheels, why pay for them? These are well-used, but serve just fine in their intended capacity.
Satisfaction guaranteed or your money back ;)
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