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The only parts of toothbrush that contacts the teeth and gum are the head and brush, these parts only requires about 1/5 of the total cost and materials. The design is for users to just simply replace the “head” of the entire toothbrush. As a reminder, the replaceable-head changes color every other 3 month.
The toothbrush made of PLA. Users are blessed with the oral hygiene and environmentally-friendliness by choosing the product.