Sonic Regular Cleaning Brush Head For SB300 Product Description Ensure an effective yet gentle cleaning of the gums and teeth with our Regular Brush Head of Sonic Smart® Electric Rechargeable Toothbrush. These are made with soft, flexible bristles to ensure utmost comfort and cleaning. Note: It is essential to replace your brush head after every 3 months. Moreover, if the blue color on the brush head has started to fade, then it's your indication to replace it with a new head. Features Soft DuPont Bristles Flexible & Comfortable Helps To Avoid Bleeding Gums Thorough Cleaning of The Mouth Compatibility ORACURA® Regular Brush Head of Sonic Smart® Electric Rechargeable Toothbrush is compatible with: SB300 Sonic Smart® Electric Rechargeable Toothbrush Refill Head Package Details & Specifications Package Content: 3 Brush Head Colour: : White/Black