[Aluminum Alloy] Lightweight and high strength, easy to carry, maintains stable temperature, long service life, non-magnetic, provides pure and stable sound quality with accurate frequency response suitable for various applications [Multi-purpose tuning fork for Healing] Can be used for musical instrument tuning, music education, medical applications, and sound therapy. Promotes deep relaxation, enhances concentration and cognitive function, helps relieve stress, supports emotional balance, and facilitates yoga and meditation practices [Extra long handle and two sound activators] The extended handle allows for easy maneuvering and reduces user fatigue during extended use. The activators help increase the amplitude and duration of the tuning fork's vibrations, delivering a more consistent and sustained sound output [Gift] Features a unique design and high-quality sound performance. A practical tool for musicians, medical practitioners, yoga instructors, and meditation enthusiasts seeking relaxation and therapeutic benefits Color: 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 specific color or style can be requested) Only the above package content is included; other items are not part of this package Note: Light reflection and differences in display screens may cause slight variations in the color shown in the image compared to the actual product. Measurement error allowance is +/- 1-3 cm