Wellness Oral Care has a wide range of electric toothbrush heads for your unique needs, from whitening to advanced cleaning between teeth to ultra-soft bristles for a gentle experience. Each electric toothbrush head is vital to our core technology of high-frequency, high-amplitude brush movements. Up to 2x better plaque removal than a manual toothbrush. The Wellness WE1PRO brush heads provide a thorough every day clean, while massaging and stimulating gums. These Wellness brush heads fit the natural shape of your teeth for a thorough clean. For best results use only Wellness Oral Care brush heads. Wellness recommends replacing your brush head every 3 months for optimal results. These brush heads fit WE3900 sonic toothbrush. May fit other similar brands.