This is an Indian-made "Fibonacci Tuning Fork" that I purchased a few years ago from "Awami." I mainly use the Acutonics Fibonacci tuning forks myself, so I haven't used this product much. (Please refrain from purchasing if you are looking for a product in new condition.) The original retail price at the time of purchase was 37,950 yen including tax. When you purchase this product, I will give you a free rubber mallet (retail price 1,760 yen) specifically for tuning forks, which will not damage the tuning fork. (It's the green mallet shown in the photo.) When you strike the tuning fork with this mallet, the sound will resonate and sustain. Fibonacci tuning forks have specific frequencies based on the Fibonacci sequence and are effective in balancing the mind and body and promoting relaxation. Please note that I took the photo with the Fibonacci tuning fork placed on a yellow-ocher stand in the first photo, but this stand is not included with the product.