Compatible for Toothbrush Heads Replacement X1 X3 X3U X5 Teeth Brush(2 Box White)

- Multi-Model Fit：Designed to fit X1/X3/X3U/X5 toothbrushes, serving as direct and reliable daily replacements. - Practical Replacement Solution：Ideal for refilling worn brush heads to keep your toothbrush functioning smoothly. - Spec-Aligned Precision：Meticulously matches the specs of target models to ensure consistent and stable performance. - Secure & Snug Installation：Aligns perfectly with toothbrush designs for a tight, reliable fit during use. - Everyday Utility：A straightforward, user-friendly choice for owners of compatible X1/X3/X3U/X5 toothbrushes.