As reprinted from the Frobozz Magic Equipment Company cataloge:

"If magic fails to protect you, turn to the blades that will. Ensure your safety any time, any place, by carrying a super sharp blade from the Frobozz Magic Sword division. Sure, magic is a more sophisticated means of protection. Buy wouldn't you rather look a little behind the times than risk getting munched by an unfriendly Dornbeast? All blades are hand-honed for balance and symmetry."

In 966 GUE, three blade sizes were available for the following prices:
regular zm11
heavy zm21
very heavy zm29