Chakra tuning fork set is made of aluminum alloy material with corrosion resistant quality, sound and precise frequency The Chakra tuning forks set can be widely used in sound healing, align 7 body chakras, cleanse the energy, Improve learning concentration, quick send negative emotions, improve insomnia, promote positive energy, massage, teach and meditation etc. tuning fork set included 8 tuning forks 126.22 Hz, 136.1 Hz, 141.27 Hz, 172.06 Hz, 194.18 Hz, 210.42 Hz, 221.23Hz, 272.2Hz. Rubber mallet, repair tool, cleaning cloth and exquisite aluminum box. Chakra tuning fork set with elegant appearance and considerate design, that is a great gift for 's Day, Father's Day, graduation, birthday, promotion, vacation etc. It would bring a clear and nice sound to all your families, even your cute pets. Material:aluminum alloy colour:As shown Package Contents: 1 x Gavel(color random and style random, cannot choose the specified color and style) 8 x tuning forks(The English pattern on the tuning fork is delivered with the factory) 1 x cleaning cloth 1 x Small wrench 1 x Aluminum box (appearance with the factory) 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.