G 384 Hz Tuning Fork from SWB 256 is engraved "G 384". It is a 2 pronged, naturally vibrating, aluminum tuning fork with a stem of 1 3/4 inches and is 7 1/8 inches long. It is used by musicians, singers, health and wellness professionals, physics labs, science teachers, and sound experts. Usually ships the same day. Wrapped in plastic from the lab. SWB 256 Tuning Fork 384 Hz high quality, low cost tuning fork is produced in the USA from a non-rusting, non-tarnishing, non-magnetic aluminum alloy, and designed by Riverbank to produce a pure tone even after many years of use with proper care. Fast shipping, long lasting, great for yourself or for a gift.