Every part of Brush with Bamboo’s Kids toothbrush is plant-based: bristles, handle, and box. -Standard Soft bristles made from 100% Castor Bean Oil. -USDA Certified 100% Biobased. -Bristles made in Germany. -FSC® Certified Bamboo handle. -The box encasing the toothbrush is made from paper – no tape or glue is used. -USDA Certified Biobased. -Green American Certified. -Vegan. -BPA-Free. -Natural and Non-toxic. Your bamboo toothbrushes can be used for just as long as plastic toothbrushes. Note: Many adults prefer to use a smaller toothbrush. This toothbrush can be used by adults too.