PS:Replacement Brush Heads for Xiaomi Mijia T300/T500/T700 Features: 1. Soft DuPont bristles, appropriate for sensitive teeth to use 2 accredited by way of approach of FDA and UV sterilized. 3 sealed packing, far more safe to use. Kind reminder: Please buy according to the corresponding model described in the call and particulars page, in every other case compatibility is rarely guaranteedHIGH EFFICIENCY CLEANING0 bristle tip diameter, deep clear the gap between teethHIGH TUFTING DENSITYSoft DuPont bristlesSIZE:85*25 FOR XIAOMI T300/T500/T700 ELECTRIC TOOTHBRUSH HANDLE MODELSNote: Due to the similarity of utmost interfaces between various models of toothbrush heads, they do not appear to be honestly compatible. The picture is for reference only. The particulars web page and the corresponding name shall prevail. For units not listed above, please consult customer service before purchasing3 colours to make a decision fromREAL TIME PHOTOThis brush head is simply correct for electric toothbrushes and is not an long-established brush head. Please don't mind variations in look or slight color differencesEach toothbrush head comes with an autonomous anti sinking capEach toothbrush head is separately vacuum packaged