The weighted tuning fork set is made of high-quality aluminum alloy material, the tone is clear, the sound is , and the frequency is perfect. Non-magnetic, corrosion-resistant aluminum alloy construction, and durable. The tuning fork set has more accurate frequency and frequency to 25 seconds. 7 Chakras + 1 Soul Chakra Tuning Fork is perfect for sound healing, Reiki practice, pain relief, tuning, meditation, yoga and more. What You Get: Chakra tuning fork set includes 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. Colour:As Shown Material:Aluminum Alloy Size: 36 x 28 x 6cm Package Contents: 1 set x tuning fork 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.