The Philips Sonicare HX6052/87 replacement brush heads are designed specifically for those with sensitive gums who need a gentle yet effective clean. Each pack contains two white, oval-shaped heads featuring over 3,000 densely packed, ultra-soft bristles that remove up to 10 times more plaque than a manual toothbrush. To reduce environmental impact, the handles are crafted from 70% bio-based plastic and come in recyclable paper-based packaging. These heads use a simple click-on design that fits all Philips Sonicare handles, making the switching process quick and effortless. They are also compatible with BrushSync technology, which monitors how long you have used the bristles and reminds you exactly when it is time for a replacement to maintain optimal oral hygiene.