Feature: Enhance the effectiveness of alternative therapies, can be used in combination with meditation, massage and acupoint press. for Long Time Use: This tuning fork is made of quality aluminum alloy material, and sturdy, non-deformation, high strength and , having long service time, non-deformation. Portable: Tuning forks set includes 9pcs tuning fork of the package(174/285/396/417/528/639/741/852/963HZ), meeting your different demands. Come with a storage bag the tuning fork from scratch and makess it portable to carry, meeting your different demands. F174 F285 UT396 RE417MI528 FA639 SOL741 LA852 F963 Application: This tuning fork diagnostic testing tool kit suitable for various to relieve pressure and reduce ear pressure.Can improves meditation and helps promote yoga posture, to enter a state of relaxation to refresh the mind and spirits. Effective: Improving physical and mental performance, tuning fork helps improve attention and cognitive function. Promoting relaxation, helps induce a state of relaxation that refreshes the mind. Colour:silver Material:Aluminum Alloy tuning forks random colors, don't accept the specified color Package Contents: 2 x drumsticks 9 x tuning forks 1 x cleaning cloths 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.