A $300,000 lawsuit has been filed on behalf of a 7-year-old boy, a 4-month-old girl and a woman -- claiming the three were badly burned by handheld fireworks that were sold to them in Oregon even though the fireworks were known to be defective.

The suit claims that fireworks seller "Funz4Kidz" had received a June 24, 2015 letter from its pyrotechnics distributor warning that the item was known to "misfire," posed a "risk to the public" and should be removed from sale "immediately." But Funz4Kidz still went on to sell the firework to the father of the 7-year-old boy as part of a $99 "manager's special" bundle, the suit states.

The parents of the 4-month-old girl also bought a bundle in a separate transaction, states the suit filed Friday in Lane County Circuit Court.

The suit states the families followed instructions that stated the item was safe for use by children with "adult supervision." The instructions also stated that the firework should be held in the hand and pointed away from the body when lit, the suit says. But when the firework ignited, sparks and fire came shooting out of its back end, according to the suit.

In the first instance, the suit claims that the boy was holding the lit firework, and temperatures ranging from 1,000 to 2,000 degrees Fahrenheit "melted" the skin on his torso.

In the second instance, the firework burned the skin and dress of the woman, Kori Ware, according to the suit. Ware was using one of her arms to hold her baby daughter -- and watched in "extreme terror" as the flames burned her baby's face, arms, hands and legs, the suit says.

The firework was sold under the name "Dazzling Diamonds," "Glow Beam" and "Touch of Sparkler." According to the U.S. Consumer Product Safety Commission, the China-made firework had injured six people as of late 2015. About 2,600 of them had been sold.

The suit faults Funz4Kidz for selling the firework and promoting the sale of fireworks to families with young children, in part by placing inflatable bouncy castle structures next to its stands. The organization is associated with CrossFire Ministries, the suit states.

Aaron Taylor, the named representative of Funz4Kidz, said Monday that the organization immediately stopped selling that firework after learning someone had been injured, he said.

"Once we knew there was a problem, we immediately pulled them," Taylor said. "Because we didn't want anyone hurt."

The suit faults the product's named distributor -- North Central Industries in Indiana -- for not officially recalling the firework through the U.S. Consumer Product Safety Commission until five months later. A woman who answered the company's phone Monday said no one was available to comment. The company operates under the name Grizzly Bear Fireworks.

Eugene attorney Travis Eiva is representing the plaintiffs. Read the lawsuit here.

-- Aimee Green