Please note: the color of the bristles may change due to different production batches, but this will not affect the use effect, mind carefully Please carefully check the brand and model of your electric toothbrush before purchasing. Thank you Toothbrush Heads compatible with Bitvae R1/ R2 Rotating Toothbrush other brands or models are not suitable, this item does not contain electric toothbrushes Please note that our product only includes toothbrush heads and does not include electric toothbrush handles. All of our toothbrush heads are individually packaged and equipped with independent dust caps, which better enhances the user experience. Thank you !!!!Please note that our toothbrush head is not original and has a slightly smaller size than the original, but it is fully suitable for adults !!!! !!!!Please note that our toothbrush head is not original and has a slightly smaller size than the original, but it is fully suitable for adults !!!! !!!!Please note that our toothbrush head is not original and ha