Heads are spinning over “fidget spinners.”

The toys provide therapy for kids with ADHD, but have taken off with many others.

Stores are selling out in no time, and classrooms are cracking down on what may be a growing distraction.

“The fidget craze is all the rage,” said Shannon Fritz, owner of Learning Express.  

Ty Curtis,10, couldn’t wait to get his hands on one.

“It’s just addictive, how they spin,” said Curtis.

They serve a dual purpose for kids like Curtis, who have ADHD, by providing a tactile activity to help them focus on other things.

“Because sometimes I see other things and I’m not focusing and try to touch stuff,” said Curtis.

Tracy Johnson selected one for her son.

“He likes to chew on his shirt, he is always doing things to keep going, which I’ve been told is because his brain is so fast,” said Johnson. “That’s his way of slowing things down.”

She said fidget toys help.

What may have started as therapy has become the latest trend.

“This is the hottest thing going right now,” said Fritz.

It’s so hot, some schools are reminding parents that toys are not allowed. Others are banning spinners unless accompanied by a doctor’s note.

“Slowly it’s classroom to classroom the teachers might be getting a little frustrated,” said Fritz.  “Or asking the kids to put it aside and come back to it later or in the end maybe banning it in the classroom.”

The latest thing may have a lasting impact on some children.

“It helps me focus,” said Curtis.

The spinners are in such demand some people make homemade ones using 3D printers.

We checked with a local pediatrician who says there is science behind fidget toys and how they help some children.

But spinners are also visually stimulating which could make them districting beyond their usefulness.