Check the listing for details. C 4096 Hz Tuning Fork with Activator. Color: Gray, Condition: New. Listed at 39.99 USD. C 4096 Hz Tuning Fork with wooden ball hammer striker Light carry pouch included Highest C octave note on the Verdi tuned piano Excellent for sound therapy, healing, crystals Best quality Riverbank tuning fork in a lovely pouch Very high ring tone, striker included to activate resonance 5 octaves above Root C 256 Hz Clear crystals Sound therapy, clearing, light, energy Brand New SWB 256 Tuning Fork, comes wrapped in plastic Excellent quality- produced in the USA from the best materials The wooden ball hammer enhances the resonance of this high Hz tuner Use the ball mallet to activate the fork Strike the fork on the side of one of the tines for the best result $27.99 includes Free Shipping, Wooden Striking Hammer and a protective Drawstring Pouch