And they're wearing the shoes with wheels everywhere.
Kids on Heelys skate around the Allegheny County Courthouse.
They also seem to like flat, smooth floors like the ones found in Lowe’s, Home Depot and Target stores.
The mother of one boy who wears Heelys said, "He loves to go to t Target. He loves the floors there, partially because he can leave skid marks."
Customers have to watch out for Heely-wearing kids weaving through the aisles dodging shoppers.
Some local stores have banned the shoes.
A Pittsburgh area Shop 'N Save posted a sign on the door that said Heelys were not allowed inside.
A Gant Eagle store along Route 228 also banned the shoes.
Giant Eagle said there is no company- wide ban. Each store manager decides how to handle the Heelys.
Workers at one Lowe’s also see problems.
One clerk at Lowe’s said,” They fly from that end of the store to that end of the store like there's nothing. It really scares me because one of those days they're going to fall and get hurt."
The kids move fast and get very close to other people.
One shopper said, "I think they don't have enough control and they could run into people."
"It's dangerous. They're people moving around carts and stuff especially in a warehouse like this, it's dangerous to everybody,” said another customer.
But just how dangerous are these wheeled wonders?
So far local hospitals haven’t seen many serious injuries Heelys...
But that doesn't mean parents shouldn't be watchful.
Dr. Steven Mendelson from Children's Hospital said, "I'd worry more about rolling out in the street, rolling down the stairs, something along those lines, than the actual falls from Heelys themselves."