Colgate Infinity Deep Clean Brush Heads is a floss-tip bristles for a deeper clean with 80% less plastic (vs. a regular plastic manual toothbrush when used with the Infinity handle). That’s why you’ll love the Colgate Infinity Deep Clean Replacement Toothbrush Heads. The Deep Clean toothbrush head has bristles that gently reach 4x deeper below the gumline* for a healthy smile. The cheek and tongue cleaner, thoroughly cleans your teeth, tongue, cheeks and gums for a whole mouth clean. The Colgate Infinity toothbrush is the smarter choice that is better for the environment**. Thanks to the replaceable toothbrush head, it has 80% less plastic than a regular plastic manual toothbrush. Looking after your teeth and the planet will give you even more reasons to flash your bright smile. Use the soft bristle replacement heads exclusively, to refill Colgate Infinity Deep Clean Manual Toothbrush. Dentists & Hygienists recommend to replace your toothbrush heads every 3 months.