Smilex AU-300D Ultrasonic Toothbrush Replacement Brush Heads - Soft Bristles Package of 2
These Soft Bristle Replacement Heads are for the Smilex AU-300D. To confirm you have an AU-300D model check your toothbrush handle -- it is clearly marked "Ultrasonic Toothbrush AU-300D". These replacement heads do not fit the AU-300E model.