Compatible for Replacement Toothbrush Brush Heads Compatible with Philips Sonicare Electric Ultra Soft Nano Bristles 4100 6500 6100(4 Pcs)

- 1. Precise Compatibility for Target Models: Expertly engineered to fit electric toothbrush models including 4100, 6500, and 6100. The optimized connection structure ensures a tight, stable fit that stays secure during every brushing session, matching the original accessory’s performance. - 2. Ultra Soft Nano Bristles for Gentle Care: Equipped with high-quality ultra soft nano bristles that offer an extremely mild touch. The fine and delicate bristles can gently wrap around tooth surfaces and reach deep into interdental gaps without causing discomfort to gums. - 3. Nano Bristle Advantages: The nano-scale bristles feature excellent flexibility and resilience. They maintain good shape even after repeated use, ensuring consistent contact with tooth surfaces for reliable daily performance. - 4. Durable Construction for Longevity: Crafted with sturdy materials, the brush head integrates well with the nano bristles. It resists wear and deformation, providing long-term usability that meets daily replacement needs. - 5. Easy & Quick Installation: Adopts an intuitive twist-on design that’s consistent with the original accessory. You can complete the replacement in seconds with a simple turn, no extra tools required, making maintenance hassle-free.