- The Source™ Brush – compatible with Flossing (Super Soft), Soft, and Medium heads. Smaller head design; fits both right- and left‑handed users depending on orientation.
- Tour™ Travel Toothbrush – uses the same heads as Source™, but cannot fit the larger Big Brush head due to its folding design.
- The Big Brush – features a larger right‑ or left‑handed head with a 45° angled neck; Big Brush heads also fit the Source handle and vice versa for a smaller‑handle/larger‑head combo.
- Big Kidz® Brush – comes in a variety of fun colors to mix-and-match with our colorful handles. A brush for every personality!
Related Articles:
- What is the difference between Source™ and Big Brush™?
- How do I remove and replace my RADIUS replacement head?
Semantic Variants:
toothbrush head compatibility • which heads fit which brush • Big Brush vs Source heads
Mar 24, 2026