The Philips Sonicare ProResults compact brush head is designed for superior oral health. The brush head has a wider sweeping motion than Sonicare Elite and a "push-on" connector so it's easy to clean. The ProResults brush head is also more environmentally friendly than Sonicare Elite. Replace every three months. Fits all Philips Sonicare FlexCare, FlexCare+ and HealthyWhite toothbrushes.