Warranty: There are two main ways in which a seller of goods may be liable under a warranty theory when the item causes injuries:

Express warranties: A seller may expressly warrant that her goods have certain qualities. If the goods turn out not to have these qualities, the purchaser (or, possibly, other affected persons) may sue for this breach of warranty. Most commonly, a seller breaches an express warranty by making a false claim about the product’s attributes in advertising or on the label.