Double deep & dual cleaning design: the toothbrush head is cup-shaped, can be rotated left and right, clean teeth efficiently, bristles -diagonally, effectively remove the sediment between teeth. The bristles for -action toothbrush replacement heads are divided into two parts. The upper part can penetrate deep into the mouth. The lower part is exactly the size of a tooth and can enclose the entire tooth. The two-part in the toothpaste and removes more of the dentals deposits in the mouth. The upper part can clean deep of your teeth. The lower part is exactly the size of a tooth and can enclose the whole tooth. The two-part in the toothpaste and removes more of the dentals deposits in the mouth. You can receive 4 replacement heads and 1 removal tools, enough toothbrushes to use for a long time Color: As Shown Material: Plastic Package Contents: 1set x Toothbrush head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.