New Anchorless Tufting Technology: Bristles without Copper Planting. Bristles are densely packed to eliminate surface stains and brighten teeth, with a gentle touch to protect gums.
Fit for:Only Suitable for the SG-2753,SG-2752 handles. This replacement brush heads only fit on SEAGO 2753,SG-2752 electric toothbrush handle
High Density 3D Bristles:Up to 4x more surface contact for an effortless deep clean.Effectively remove plaque vs ordinary toothbrush head
4 Brush Heads:4 replacement brush heads per pack, which can last up to a year. For optimal results, replace your brush head every 3 months
≥99% End-rounding:Premium bristles,rounded, flexible bristles gentle on gums. Just considering protecting teeth when brushing in high vibration. The teeth enamel would get worn if bristle was not rounded