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 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. 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 make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!