Compatible for 4pcs Toothbrush Heads Replacement X1 X3 X3U X5 Teeth Brush Replacement Heads(White 4 pcs)

- Multi-Model Compatibility: Tailored as dedicated replacement heads for X1, X3, X3U and X5 toothbrush models. - Dedicated Replacement Parts: Designed as practical accessories for compatible toothbrush maintenance. - Precise Fit Design: Matches the specifications of X1/X3/X3U/X5 models for stable use. - Easy Installation Process: Simple to attach and detach for hassle-free routine replacement. - Daily Usage Fit: Suitable for consistent personal or family daily toothbrush maintenance.