WASHINGTON (AP) – Hundreds of thousands of popular B.O.B. jogging strollers are being recalled because of choking concerns.

The Consumer Product Safety Commission says the backing on an embroidered logo patch on the stroller’s canopy can come loose. CPSC says the firm has received six reports of children mouthing a detached patch backing. Two cases involved choking and gagging.

Consumers need to remove the embroidery backing patch before they can use the stroller.

They can visit the website of B.O.B. Trailers of Boise, Idaho for more information.

The recall involves more than 411,000 single and double jogging strollers in the United States and 27,000 in Canada.

The strollers were sold at REI, Babies R Us and other stores nationwide between November 1998 and October 2011.