We decided to use metal to make the handle of our toothbrush, because after extensive testing we found it to be the best choice, combining functionality and comfort while brushing. The metal handle ensures not only durability and durability, but is also extremely comfortable to use due to its design. Its ergonomic design allows for a firm grip and precise control, which contributes to a more efficient and thorough cleaning of teeth and gums. We chose it because we believe that the key to a revolutionary product lies in combining superior functionality with an exceptional user experience.