[Aluminum alloy] Light weight and high strength, easy to carry, maintain stable temperature, long service life, non-magnetic, clean and stable sound quality, accurate frequency can be used in many fields [Multifunctional tuning fork for healing] Can be used for tuning musical instruments, music teaching, medical treatment, sound therapy. Promotes deep relaxation, improves 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 vibrations, ensuring a more consistent and long-lasting sound. [Gift] With unique design and sound charm, the musician's right hand, practical medical value for doctors, yoga and meditation enthusiasts to gain spiritual healing and relaxation Color: Silver & Black Material: Aluminum Alloy Package Contents: 4 x Tuning Forks (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 contents, 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 +/- 1-3 cm._tfrf