Unless otherwise specified in the description, functional swords or "combat ready" swords will often have tempered high carbon steel blades. Functional swords are real swords with appropriately adjusted tangs to endure the demands of re-enactment and historical authenticity. They can be used for cutting tasks as well as for thrusting. The term "functional" refers to the idea that the sword is able to perform its function effectively in battle. A combat-ready sword should provide a balance between strength and flexibility to allow for effective use in combat. Most modern swords are not designed to be functional weapons. Their main purpose is to be beautiful objects capable of killing others in battle. Some modern swords do include some type of functionality such as RFID blocking properties or ability to cut through heavy materials but these features are not their primary purpose. There are several types of swords available for use in re-enactments. The three most common types are reproduction, re-created, and custom made. Reproduction swords are the least expensive option and usually consist of a metal blade with plastic or wood handles. These are good options for beginners who want to experience the sport of fencing without spending a lot of money. Handmade or custom-made swords are the most expensive option and require skill to craft properly. Only experienced fencers should attempt to make their own sword because it is difficult and requires special tools.