Usage Tips:[Durable 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. [Creative gift]with unique design and sound charm, musician's right-hand man, practical medical value for medical practitioners, yoga and meditation enthusiasts to get spiritual healing and relaxation Colour:Silver&Black Material:Aluminum Alloy Package Contents: 4 x tuning fork(128Hz, 136.1Hz, 256Hz, 384Hz) 1 x Tuning Fork Activator 1 x Wrench 1 x Cleaning cloth 1 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.