YL Trd Adjustable Bike Training Wheels Bicycle Stabilizers Mounted Kit for 18-20 inch Multi-Geared Bike

Served their purpose

stronger brackets, but had to modify to get it to fit. Not sure there is a ONE SIZE FITS all,but I chose these for the look of the strength of the bracket. I ended up using to Hose Clamps to attach the supports to the frame.

These worked great for my daughter's Trek MT 220 with 16" wheels. They are adjustable and can probably fit a 20" wheel bike - not sure if they would be able to fit anything larger. My daughter had no interest in learning to ride a bike until she had outgrown traditional, smaller bikes. With theses, she was riding her bike without training wheels after just a couple days. Well worth the purchase.

Training wheels were easy to put onto bike. Fit perfect. Works great.

Dangerous. The bike is a 20 inch boys bike. With in the first 1/4 ride the wheels did not stay in place scratched up the paint badly. This happen 3 times in the 1/4 mile trying to back home at this point. Absolutely horrible and Dangerous and damaged a brand new bike and worse of all I watched my son fall 3 times luckly unhurt and it's cuz of this junk product. Dooo not buy

Good stuff.

Easy to attach!

The training wheels fit onto a bike for the 6-9yo age group well. Many training wheels will only fit onto younger children's bikes. The nut which allows you to adjust the height of the training wheels is in a tight place and is a bit tricky to access. In the end I did it with some needle nose pliers - it was too tight for a wrench. But this is a minor quibble.