Toys R Us has recalled nearly 53,000 pacifier clips over a choking hazard.

According to reports from the U.S. Consumer Product Safety Commission, the pacifier’s metal spring clip can break and release small parts which could pose a choking hazard for small children.

The recall involves Babies R Us pacifier clips sold exclusively at Babies R Us and Toys R Us stores nationwide from February 2015 through April 2016.

The clips cost around $4 and came in six different colors and character designs that included a red monster, blue monster, monkey, giraffe, owl with one eye closed and an owl with both eyes open.

The company has received two reports of pacifier clips breaking, but no injuries have been reported.

Anyone with these clips should immediately return the product to Babies R Us or Toys R Us for a refund.