Features:<br> 4 tuning forks with the most vital frequencies(128Hz,136.1Hz,528Hz and 4096Hz) equipped with 2 hammers and repair tool.<br> Otto Tuner (Weighted) for hearing test, neurology exam, pain relief and relaxation. Use on any bone, joint muscle, nerve, any body part, etc.<br> Ohm Tuner(Weighted )for meditation & relaxation. Place by the ears or on joints, muscles and nerve groups to relax the body, release stress and prevent illness. Use it on knees and feet for grounding.<br> MI 528 is the best solfeggio frequencies biofield tuning which has a very relaxing effect on mind and body.<br> 4096C Otto Tuner/crystal tuner/angel tuners/biofield tuning is quite high pitched, which help to open your mind to new ideas and provides increased receptivity.<br> <br> Package Includes:<br> 1 Set Tuning Fork<br> <br> Specifications:<br> Material: aluminum alloy<br> Color: silver/gold/red<br> <br> note:<br> Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.<br> Due to the difference between different monitors, the picture may not reflect the actual color of the item.