Review on YTKD 12 Inch Bicycle Training Wheels - Flash Mute Wheel [1 Pair] - Compatible with Bikes by Andy Jolley

I bought these training wheels for my granddaughter's bike, not sure what size they are but the wheels on the bike were 12 dia. 5 inches so I got it that this is a 12 inch bike. My wife bought the bike of her own free will so there was no information on the bike, these training wheels fit perfectly anyway. I've seen some reviews mentioning that the LEDs in the wheels don't light up, but the pair I have work very well (the LEDs only light up when the wheels are spinning) and ours work great.