Product Introduction Product Features: Contains platinum colloid ceramics in the bristles. Effectively removes plaque even with just water. This is an additional item to the already popular Fresh Black Toothbrush. Ingredients and Components [Material of Handle] Main Body... Polypropylene Rubber Part... SBC [Material of Bristles] Saturated Polyester Resin Safety Warnings - Please brush gently to avoid damaging the gums. - After use, rinse thoroughly with running water, shake off excess water, and store in a well-ventilated area. - To avoid discoloration or deformation, do not expose to chlorine-based disinfectants, bleach, or boiling water. - Replace when the bristle tips become splayed.