Colgate total battery toothbrush refill 2pk is designed for use with Colgate refillable power toothbrushes to deliver a deeper and more effective clean. Featuring high density bristles, it creates rapid foaming to help clean tight spaces and hard to reach areas between teeth. The brush head also includes a premium tongue and cheek cleaner to support fresher breath and improved oral hygiene. Designed to help fight the root causes of common oral health issues including cavities, plaque, bacteria on gums, bad breath, tartar buildup and surface stains, it provides a comprehensive clean with every use. Always follow product instructions for best results. Key Features: Helps fight root causes of oral health issues: helps fight root causes of cavities, plaque, bad breath, tartar buildup**, stains***, bacteria on gums. Sonic vibrations: breaks apart plaque for a superior clean (vs a manual toothbrush) 2x more bristles: high density bristles for rapid foaming to clean hard to reach areas (vs Colgate extra clean) Floss tip^ bristles: bristles that reach deeper along the gumline and between teeth to remove bacteria Replaceable brush head brush head can be replaced.