This is an offering of the "Kusuri-e" and "Fullerene Ceramic Sheet" developed by Dr. Maruyama, an insole that utilizes a shape-memory patented material that molds to the shape of your feet. It reduces the burden on tired feet and supports ease of walking. After purchasing new, it has been stored in a closet without being used. I will sell it to those who need it. Retail price: 7,920 yen Size: M (25-26.5cm) The following is an excerpt from the official website: ↓ There are benefits to walking barefoot. One is that you can return the static electricity accumulated in your body to the earth. This is an excellent countermeasure to prevent electromagnetic wave interference. Another is that bare feet can fully absorb geomagnetism. Our ancestors walked on the earth barefoot for hundreds of thousands of years. Considering this, the soles of the feet can be said to be one of the parts of the body that has received the most geomagnetism for hundreds of thousands of years. In other words, it can be said that it is a part of the body that has fully absorbed the earth's energy, the earth's waves, which is geomagnetism. I think that the soles of the feet may be particularly susceptible to absorbing geomagnetism compared to other parts of the body. According to research by neuroscientists, stimulation of the feet increases blood flow to the brain and improves brain function. Modern people walk barefoot less often, and in daily life, they often live away from the ground, such as in buildings and apartments, so they may be in a state of geomagnetic deficiency, and blood flow to the prefrontal cortex may decrease. As a countermeasure, I believe that by using an insole (Gaia Insole) that emits the same magnetism as geomagnetism, you can fully absorb geomagnetism from your feet, as if you were walking barefoot in the past, even in buildings and apartments. In fact, using a geomagnetic insole increases blood flow to the prefrontal cortex, which is responsible for human-specific brain functions such as learning, memory, and creativity. I personally think this is an effective means to prevent forgetfulness and improve study effects for exams and daily learning.