Material:the tuning fork is made of good quality aluminim alloy, lightweight and durable, high accuracy.ergonomic design that you can use anytime and anywhere.Slip it in your bag or storage pouch and carry it with you wherever you go. Usage: use this tuning fork to maintain balance and health; Put this tuning fork on the joints, muscles and nerves to help relax the body and release stress High Precision:The rounded design of the tail perfectly combines aesthetics and comfort,and comes with a silicone hammer for added control over striking force,allowing you to better use your tuning fork. Wide Compatibility:128Hz,Adjusting Fork Set for treatment. Ideal for patient hearing therapy, treatment, children's education, stress pain relief, purification of mind and body, and great for meditation or yoga. Packing:Including 1 ear tuning fork,1 velvet packaging bag,1 little Hammer and1 small accessories.