About 63,000 fitness resistance bands from Bollinger Fitness are being recalled.

A black plastic ball attached to the resistance band’s door anchor can unexpectedly release and strike the user, posing an injury hazard.

There has been one report of the door anchor ball releasing, resulting in an injury to the user.

This recall involves Bollinger Fitness Classic and SoftTouch resistance bands with door attachment, model numbers 5771, 5772, 5773, 5774 and 5775. The 4-foot long resistance bands are made of gray rubber with gray, red, black or blue accents and have black foam handles and a door attachment. A 5-inch long strap of nylon webbing is looped onto the band with a plastic ball attached or encased that serves as a door anchor.

The Bollinger Fitness logo appears on the handles. The model number can be found on the product’s packaging.

The resistance bands, manufactured in China and Taiwan, were sold at Fred Meyers, Marshalls, Modell’s Sporting Goods, T.J. Maxx and other retailers nationwide and online from July 2012, through March 2014, for between $9 and $14.

Consumers should immediately stop using the door attachment and contact Bollinger Fitness for instructions on how to receive a free replacement door attachment, including free shipping.

Consumers may contact Bollinger at (800) 255-6061 between 7 a.m. and 5 p.m. ET Monday through Friday, or by email at SGuess@alliancesportsgroup.net.