Usage Tips:Premium Quality: Crafted from high-grade aluminum alloy, our Angel tuning forks offer clear tones, extended sound, and precise frequencies They are -, non-magnetic, , and built to last. Complete Set: This value-packed kit includes three tuning forks at 4096 Hz, 4160 Hz, and 4225 Hz, along with a small wooden hammer, and a convenient storage bag. Portable Design: Compact and , our Angel tuning fork set can easily fit into any instrument case or pocket for on-the-go use The included soft pouch bag ensures safe storage and transport. Thoughtful Gift: With its shimmering color and soothing sound, this tuning fork set makes an excellent gift for Halloween, Christmas, Year, retirement, graduation, Valentine's Day, birthdays, or any special occasion. Suitable for everyone from grandparents to children, even can enjoy its calming effects. Colour:As Shown Material:Aluminum Alloy Package contents: 3 x Tuning fork 1 x bag 1 x wooden hammer 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.