[Wide Used]perfect for repair healing, relieving stress , improving attention, purifying the mind and body, and also very suitable for meditation or yoga. Each one produces a certain frequency for different specific purposes. [ Material]:Made of high-quality Aluminum alloy with fine workmanship and high precision. Impact resistance and non-magnetic aluminum tuning fork, soft wooden , all with smoothing and well made, that would last for a time. [Clear Tone]These tuners enhance your connection to universal energy for manifesting and a meditative state, as well as connections with higher powers, visions, and expression. [Perfect gift ]:With elegant appearance and considerate design, this tuning fork set case is a great gift for 's Day, Father's Day, graduation, birthday, promotion, vacation etc. It would bring a clear and sound to all your families, even your cute pets. Colour:silver Material:Aluminum alloy type:528HZ Package Contents: 1 x Tuning Fork 1 x hammer(Random color style, 't accept the specified) 1 x storage bag 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.