[ Aluminum Alloy]Light weight and high strength, easy to carry, maintains stable temperature, long service life, non-magnetic, pure and stable sound quality, accurate frequency can be used in many areas[Multi-purpose tuning fork for Healing]Can be used for musical instrument tuning, music teaching, medical treatment, sound therapy. Promotes deep relaxation, enhances concentration and cognitive function, relieves stress and regulates emotions, facilitates yoga and meditation.[Extra long handle and two sound activators]The extra long handle is easy to maneuver and reduces fatigue during use. The activators also increase the amplitude and duration of the tuning fork's vibrations, ensuring a more consistent and long-lasting sound.[ gift]with design and sound charm, musician's right-hand man, practical medical value for medical practitioners, yoga and meditation enthusiasts to get spiritual healing and relaxationColour:Silver&BlackMaterial:Aluminum AlloyPackage Contents:4 x tuning fork(128Hz, 136.1Hz, 256Hz, 384Hz)1 x Tuning Fork Activator1 x Wrench1 x Cleaning cloth1 x Hammer(Colors and styles are random, no specified colors and styles are accepted)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.