Gentle Brushing - - Adoted filaments, the rounded end bristles can gently massage your teeth and gums, avoiding worn teeth and providing a cozy brushing experience. Thorough Cleaning - - With 3D curved bristles, the short bristles can clean the surface of the teeth, and the long one will penetrate deep into the gaps and edges of your gums, which will better fit your teeth's shape and clean at multiple angles. Main Function - - The sonic replacement toothbrush head can effectively remove plaque, calculus, tea stains and smoke stains, helping you to restore the natural color of your teeth. Material: ABS colour: As shown Package Contents: 6 x toothbrush heads 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.