The Musical 432 Hz Tuning Fork is used by musicians, health, wellness professionals, healing experts, educators and sound therapists. The SWB 256 Tuning Forks 432 Hz high quality, low cost tuning fork is produced in the USA from a non-rusting, non-tarnishing, non-magnetic aluminum alloy. It will produce a great tone even after many years of use. Wrapped in plastic from the lab. Great for yourself or for a gift.