This is an eco-friendly bamboo toothbrush that uses natural bamboo for the handle part. Bamboo is said to have the properties of both grass and wood, and grows wild every year by absorbing CO2 from the atmosphere. It is a sustainable and carbon-neutral material that does not require fertilizer and can be used as bamboo in 3~5 years. The bamboo of this product is carbonized under high temperature and pressure, which has an insect repellent effect, and no chemicals are injected. In addition, the surface of bamboo is coated with urethane suitable for the Food Sanitation Law in the same way as commercially available painted chopsticks. It prevents moisture and dirt from seeping in and achieves a smooth polishing feel. The shape of the brush head matches the oral size of Japan people, and it is designed to be easy to polish to the smallest detail. The brush part uses tapered bristles from the viewpoint of toothbrushing effect. Bamboo is a natural material, so there are slight individual differences in weight. Compared to a plastic toothbrush of roughly the same weight, it can reduce plastic by about 85% or more. After inspecting all products in Japan, we will ship them to our customers. It is perfect not only for daily use, but also for travel and work.