1. Ultrasonic electric toothbrush can effectively remove plaque and reduce gingival necrosis. 2. The appearance of the 3D brush adapts to the luster of the teeth. The small and delicate brush head is easy to Press inside your mouth. 3. Adopt DuPont American tynex classic 0.152mm bristles, brush approved by FDA and UV sterilized. 4. Vacuum packaging, safety standards. This type is suitable for people who smoke or drink coffee. 5. Suitable for SOOCAS V1X1/X3/X5/X3U Electric toothbrushes. Name: Electric toothbrush head Type: replaceable toothbrush head Model Number: For SOOCAS Item Type: Toothbrushes Head Gift: Toothbrush holder Gift 2: Dental floss Model: For SOOCAS V1/X3/X3U/X5 Electric Tooth Model 2: For Soocas V1/X1/X3/X5/X3U PS: Please pay attention to the model:For SOOCAS Note: applicable brush head Material:plastic colour:Black Package Contents: 4 x Electric toothbrush head Only the above package content, other products are not included. Note: Light shooting 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.