WASHINGTON – Hallmark Cards Inc. is recalling about 7,000 Harry Potter “Magic Potion Bottle” key chains because they could leak a substance that may be fatal if swallowed.

Kansas City, Mo.-based Hallmark has not received reports of any incidents, the Consumer Product Safety Commission said Thursday.

The product includes a “potion bottle” filled with purple-colored mineral oil and red-colored water. It contains petroleum distillate, a fuel-burning substance that can cause breathing problems and become fatal if breathed into the lungs, a safety commission spokeswoman said.

Hallmark is recalling the 3-inch key chain voluntarily. The product is made of styrene and has a green base, a gold top and the letters “HP” printed on the bottle.

The key chain was sold at Hallmark, Hallmark Cards, Wal-Mart and other grocery, drug and gift stores nationwide from October to November 2001. It sold for about $5.

Parents should take the key chains immediately from their children and contact Hallmark at 1-800-425-5627 between 9 a.m. and 6 p.m. EDT Monday through Friday for a refund.