NEW YORK (AP) - Stores can't keep them in stock. Parents are going crazy trying to find them.

The mania for fidget spinners _ the 3-inch twirling gadgets _ is unlike many other toy crazes. They're not made by a major company and are more easily found at a gas station or 7-Eleven than a big toy chain.

The craze exploded last month. Shannan Rowell, a sixth-grade special education teacher, says that after a weeklong break in late April more than half of her students suddenly had one.

Michigan toy store owner Tom Jones says the phone rings 20 to 30 times a day with people checking if they're in stock.

Toy expert Jim Silver expects the fad to last into the summer but fade as more of them flood into the market.

More From AM 1240 WJON