HAWENS Training Wheels, Bike Training Wheels with Stronger Version Heavy Duty Rear Adjustable Bicycle Stabilizer Mounted Kit, fit for 12, 14, 16, 18, 20 inch Kids' Single Speed Bike

Easy to install and works great! My son will be able to transition bike sizes easily and continue to use these!

Works great, unfortunately was missing instructions. Still simple enough to get it hooked up

Needed some training wheels for my wife's 20 inch electric bike. She just learned how to ride. Unfortunately, the axle hubs are too large for the holes on the wheels, so I had to return them. This works only for tiny kids bicycles.

The extension screw ruined and pulled out the stud on my kids bike. Her brand new bike is ruined. Do not buy this. Now I have to buy a whole new bank wheel. Also the instructions have very little instruction.

We have the on the first notch at the top. The metal is very flexible and has bent easily. We have had to bend it back several times. Other than that they are good.

The media could not be loaded. Work perfectly on my son’s bike. Easy to install- definitely worth the money while my son learns to ride!

The product description photos show 'tempered "wheel bearings. No steel wheel bearings with this. False advertising.

These were easy to install. Seem to be a heavy duty material. My toddler loves them.