Giving it away to someone. It's a good toothbrush. I want to offer it at a low price, so Shipping will be via Nekopos. This toothbrush has 20,000 ultra-fine bristles like a brush, which redefine the concept of toothbrushes. These ultra-fine bristles are coated with platinum nano-particles "Ptnano". The ultra-fine bristles are 0.08mm in diameter, compared to the usual 0.2mm, allowing them to reach into the gaps between the gums without damaging them. In addition, the neck of the toothbrush is also treated with "Ptnano", so the entire toothbrush is processed to inhibit the growth of bacteria, allowing it to be kept clean just by rinsing with water. *Ptnano is a material created by combining platinum nanoparticles with citric acid and ascorbic acid as protective agents using cutting-edge nanotechnology. It is a toothbrush that utilizes the antibacterial and antiviral effects of platinum.