Ordo Sonic+ Replacement Brush Head - Charcoal Grey - Pack of 4. Looking for a new head for your Ordo Sonic+ toothbrush? This pack of four brushheads is all you need. The click push-fit design means you can replace the brushhead in seconds. Its high-quality rounded bristles are designed to take care of your pearly whites. No more bruising while brushing - the silicone polishing bit will help to gently whiten your teeth.