THIS IS A TRAINING WHEEL SET FOR SMALL BIKES WITH 20 INCH WHEELS. BEST STRONG SET I COULD FIND TO SELL IN OUR BIKE SHOP. SUPER EASY TO INSTALL, NICE STRONG STEEL BRACKETS, NICE RUBBER TIRES, I HAVE SOLD THE WHEELS ALONE FOR PEOPLE WHO NEED THEM FOR CARTS AND OTHER THINGS LIKE THAT. SUPER HEAVY DUTY AND GREAT FOR ANY 20" BIKES.
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