Fangrui Product Details Optimize Physical And Emotional Balance: Of Health Lies In Free Energy Flow Within Your Body. Our Set Expedites This Process By Providing A Deep State Of Relaxation, Strained Muscles And Joints, Enhancing Massage Acupressure Effectiveness, And Stabilizing Your Nervous System. Premium Quality And Accuracy: Our Weighted Tuning Forks Set (1 X Gold = 128hz, 1 X Black = 256hz, 1 X Black = 512hz) Are Crafted Out Of Quality Aluminum Alloy. The Set Ensures Max.3hz Deviation And Is To And Non-magnetic. Convenient For Travel, Our Set Includes A Reflex Hammer With An Animal-friendly Rubber Ball. Quality Material Selection: Our Body Tuning Forks Are Made Of Quality Aluminum Material, Impact And Non Magnetic, Sturdy And Solid, Strong Against Breakage Or Fracture, Besides, The Silicone Tuning Fork Hammer Is Well Made, Soft And Soothing, Serving You For Periods Of Time. Colour:gold Black Material:aluminum Alloy Package Contents: 1 X Tuning Fork Hammer(color Is Random, No Specification Is Accepted) 3 X Tuning Forks