Generally, advertisements, catalogs, brochures, and announcements to the public related to the sale of merchandise at a specified price are not considered offers to enter into a binding contract. Rather, they are considered invitations to make a deal.

Is this advertisement an offer to contract?

A contract is an agreement between two or more persons which is enforceable by law. There must be an intention to create legal obligations amongst the parties and the elements of offer, acceptance and consideration.

Are advertisements legally binding?

Advertising is not a legally binding contract with your customers, and so they can't sue you in civil court. You can, however, still bring the wrath of the U.S. Federal Trade Commission (FTC) down on your head if you fib, even a little, in advertising.