"They're hot toys," she said. "They make great stocking fillers and they're very collectable. We're doing everything we can to make sure everyone's stocking is full of them.
"Kids are playing them in the playground and they'll be challenging each other over the Christmas holidays."
Top toy shop Hamleys said they haven't got any. The store manager in their huge London shop, Gary Seeney, said the last delivery sold out in two days.
He added that mobile phones are making BeyBlades even harder to get hold off, because as soon as a new delivery turns up, desperate shoppers text their friends to tell them where to rush to.
Another top toy this year is karaoke machines.
"It's because of the Pop Idol phenomenon," said the Woolworths spokeswoman.
"Everybody wants to be the next Will or Gareth or Britney. It's going to be a noisy Christmas in lots of homes - but a very happy one!"