432 Hz Weighted Tuning Fork weighted 432 Hz tuning fork Aluminum, non rusting, non tarnishing, Weighs 2.1 oz, 5.75 inches long Permanent weights, diameter of the weights are 1-7/8 inch Naturally vibrating, 2 pronged tuning fork calibrated to the Verdi A of 432 Hz (cps). Fast shipping. Deep vibration and ring tone for music, healing, sound work. Will last for years.