Replacement Toothbrush Heads ForCompatible for X.Q.M. X-3 X-2 Sonic Electric Soft Bristle(4pcs Black)

- Compatible with sonic electric toothbrush models X-3 and X-2 for proper fit. - Features soft bristles for gentle contact with tooth surfaces during use. - Designed as replacement toothbrush heads to assist in debris removal during use. - Works with sonic electric toothbrush vibration mechanism for consistent support. - Easy to install by aligning with handle for secure attachment and reliable performance.