LaBella's acoustic guitar sets are comprised of perfectly balanced strings and are available in a choice of many different gauges. Accommodating today's acoustic players and their instruments, these varied set designs present many options for stringing. Only the finest American-made materials are used -- high quality plain steel and superior bronze alloys. Handcrafted by skilled technicians, LaBella guarantees every string that leaves the factory. Today, some manufacturers have discovered a quick fix method to prevent oxidation from occuring. They coat the metal strings with a polymer or synthetic material. This process stifles the wound string's sound production and does not guarantee a longer life. Any surface treatment deadensthe natural transmitting powers of the string and dampens the high overtones associated with a good wound acoustic guitar string.