[High-Quality] chakra tuning forks are made of aluminum, which is a soft metal, great for harmonics and sound healing. They are resistant to corrosion and are and durable. [528 Hz Meditation Tools] Transformation and Miracles ( Repair) - This frequency is also known as fork. It diffuses negative energy and enhances love and peace. Scientists are currently using the fork to transform . [Sound Healing] tuning fork is available in the electromagnetic wavelength of 528 Hz. Tuning forks will vibrate at a set frequency to produce a musical tone when struck. [How To Use A Tuning Fork] To activate your tuning fork, hold it as close as possible to of the handle. For best results, strike the tuning fork gently against a hard surface near where the tines end. Note that you do not need to strike the tuning fork very hard against an object to activate it. Colour:Green Material:Aluminum alloy Package Contents: 1 x Hammer(Color and style are random, no specification is accepted) 1 x tuning forks 1 x cleaning cloths(Color and style are random, no specification is 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.