The consumer product safety commission issued a warning on Wednesday to stop using a certain model of baby chairs.

Four million of the popular foam  "bumbo" brand seats have been recalled after the government says nearly two dozen infants have suffered skull fractures.

Four years ago Kevin Lamm told ABC news his son fell out of a bumbo seat while on a table, cracked his head in two places and almost died on the way to the hospital.

This harrowing report, and others, prompted a voluntary recall of the seats in 2007.

Under the new recall, parents will be able to install restraining belts themselves that help keep their babies inside the bumbo.

The repair kits are free, and you can order them online.