The cracks can cause small parts of the clip to break off, posing a potential choking threat to infants, according to the US Consumer Product Safety Commission. "Consumers should immediately take the recalled pacifier holders away from infants," Playtex posted on its website.
While there have been no known injuries, the product safety commission said there had been 99 reports of cracked clips.
The clips are designed to attach pacifiers to clothing, diaper bags and strollers. A Playtex spokesman was not immediately available for comment.
The company is offering a full refund to customers.
Some 1.25 million clips were sold in the United States and Canada from mid-2010 through late 2013.
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