These Replacement Toothbrush Heads (8 Pack by PURSONIC) are compatible with most Oral-B power toothbrushes. They have built-in bristles which bend easily to ensure flexibility, and thorough cleaning capability. Brushing with these brush heads also enables both gentle brushing and deeper cleansing between teeth. They are compatible with the following Oral B electric toothbrushes: – Oral B Vitality Precision Clean (All models) – Oral B Vitality Dual Clean (All models) – Oral B Professional Care (All models) – Oral B Professional Care Smart Series (All models) – Oral B TriZone (All models) – Oral B Advance Power (All models) – Oral B Pro Health (All models) – Oral B Triumph (All models) – Oral B 3D Excel (All models) Our heads are not compatible with Oral B Vitality Sonic, Oral B Cross Action Power, Oral B Sonic Complete or Oral B Pulsonic. Master Carton Dims: 14 LBSx14"x16"x9"