🪥 Elevate Your Oral Care Game! Snug fit reduces noise for a more pleasant brushing experience. Fits a wide range of Philips Sonicare models for versatile use. Fading bristles signal when it's time for a new head. W-shaped bristles for a thorough clean without harming gums. Cooper-free flocking ensures durability and hygiene. Food-grade safe materials Low noise operation 40% more bristle volume The Karessories 4 Pieces Replacement Toothbrush Heads are designed for Philips Sonicare electric toothbrushes, featuring advanced cooper-free flocking technology for enhanced hygiene and durability. With gentle W-shaped bristles that remove up to 7x more plaque, these heads ensure a superior clean while being compatible with various models. Each head is individually sealed for safety, and the fading bristles provide a smart reminder for timely replacements.