This is a traditional Japanese daikon radish slicer. It can be used to make kiriboshi daikon (dried daikon radish). Kiriboshi daikon is a "treasure trove of nutrients" where the nutrients are concentrated by drying fresh daikon radish. In particular, calcium increases by about 20 times, and dietary fiber, potassium, iron, and B vitamins increase significantly, making it effective in preventing osteoporosis, relieving constipation, improving swelling, and preventing anemia. If cooked without rehydrating, you can consume water-soluble nutrients without losing them. If you are interested, please feel free to inquire.