What's in the Box - Contains 8 pack of Jiuzhoudeal electric toothbrush replacement heads for sonic care with 8 crystal caps for storage and travel. You will also get a comfortable brushing experience. Effective Clean - Jiuzhoudeal electric toothbrush heads for philips sonicare are made with end-rounded Bristles for offering better clean of hard-to-reach areas and bringing comfortable brushing experience. Densely Packed bristles with power vibration remove up to 7x more plaque than manual brush heads. Advanced Bristles - Jiuzhoudeal toothbrush heads for philips sonicare electric toothbrush handles advanced bristles made from Dupont Tynex Nylon, bristles are extra-gentle and comfortable for the tooth and gum, high reliability of bristles planting technology to ensure that the bristles do not fall. Recommend replace the toothbrush head at least once every 3 months. High Compatibility - These Jiuzhoudeal replacement toothbrush heads compatible with Phillips Sonicare electric toothbrush all snap-on handles including Plaque Control, Gum Health, ProtectiveClean, DiamondClean, EasyClean, DailyClean and FlexCare. Resolve Your Issue: Do you have the issues of bristles falling out, noisy, not fit or broken easily? Jiuzhoudeal replacement toothbrush heads for sonicare electric toothbrush are here to resolve your problem, brushes heads make with quality bristles, provide the high health and standard.