Ultrasonic electric toothbrush can effectively remove plaque and reduce gingival necrosis. The appearance of the 3D brush adapts to the luster of the teeth. The small and delicate brush head is easy to touch inside your mouth. This type is suitable for people who smoke or drink coffee. Suitable for Oclean X/ X PRO/ Z1/ F1/ One/ Air 2 /SE Electric toothbrushes. Deep cleaning for fitting teeth 3D curved brush head design Featuring a 3D curved design of a mature toe, it is easy to penetrate into the spaces between teeth and the edges of the gums, Can better fit teeth from multiple angles for balanced cleaning Colour:D:Black Material:ABS+nylon bristles Package Contents: 10 * toothbrush replacement head Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.