These W2 Optimal White Standard Soniccare Toothbrush Heads by Philips are densely-packed with high-quality bristles that remove up to 7x more plaque than a manual toothbrush. The W2 Optimal White stain-removal pad, made from densely-packed diamond-shaped bristles, removes surface stains caused by food and drinks. You'll notice a whiter smile, up to 100%*, in just 7 days. These heads are safe and gentle on teeth and gums. During tests, each brush head is put through its paces to ensure durability and an exceptional performance every time you brush. The diamond-shaped bristles give you 100% whiter teeth in 1 week, ideal to get the perfect smile. They feature up to 7x more plaque removal than a manual toothbrush, which in turn also improves Gum health with the high performance toothbrush bristles. Suitable for these models: 2 Series plaque defence, 2 Series plaque defence, 3 Series gum health, DiamondClean, DiamondClean Smart, EasyClean, Essence+, FlexCare, FlexCare Platinum, FlexCare Pla