[Tuning Fork Set] The therapeutic tuning fork is machined from aluminum alloy, precisely tuned to within 0.5% of the specified frequency, and produces a clear, long-lasting tone that resonates deeply, supporting overall well-being. [128Hz Tuning Fork] Weighted tuning fork for hearing tests, neurological assessments, and relaxation. Can be used on bones, joints, muscles, and nerves to support resonance and stimulate the nervous system. Suitable for use near the ears to promote deep relaxation. [136.1Hz Tuning Fork] Weighted tuning fork designed for meditation and relaxation. Can be placed near the ear or on joints, muscles, and body areas to help relax the body and relieve stress. Ideal for use on knees and feet. [528Hz Tuning Fork] Tuning fork used for sound therapy applications. Produces a calming effect on the mind and body. Frequently used in energy balancing and sound healing practices. [4096Hz Tuning Fork] High-frequency tuning fork suitable for advanced sound therapy. Can be applied to the skull or used near the ears to support mental clarity and focus. Also used in space clearing and sound cleansing practices. Color: Silver Material: Aluminum alloy Package Contents: 2 x drumsticks (color and style may vary) 4 x tuning forks 1 x small wrench Only the above package content is included; other items are not included. Note: Light and display settings may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.