Oral-B CrossAction Dual Clean Electric Toothbrush Replacement Heads. From the #1 Toothbrush brand used by dentists worldwide. Replace your brush head every 3 months to relive that new brush feeling. Oral-B: The Brand More Dentists Use Themselves Worldwide Suitable For: Also fits: CrossAction Power Max Product Claims: #1 Toothbrush brand used by dentists worldwide Recommended By: Dentists Boxed Contents: 2 Replacement Heads Size: 2 Replacement Heads KEY FEATURES • Dual clean • Replacement heads • Also fits: CrossAction Power Max • Replace your brush head every 3 months to relive that new brush feeling. • Country of Origin: GermanySmall parts may present a choking hazard.Keep out of reach of children under 3.