Humble brush kids yellow soft toothbrush 1 brush humble brush kids yellow soft toothbrush is a naturally anti bacterial toothbrush made up of bpa free nylon 6 bristles and a handle composed of sustainably grown moso bamboo it is even presented in a box that is made of 100 recycable materials humble brush kids yellow soft toothbrush includes ultra soft bristles for your childs growing teeth when it comes to being safe for your children and good for the environment you need not look further