About teeth,do you also have such issues? Plaque,tartar,teeth gum bleeding,yellow teeth,oral odor.... WuYan replacement toothbrush heads for Xiaomi know your teeth, love your smile! Ergonomic Design With camber design and high density hair planting, the brush more fit the shape of your teeth, without leaving dead ends, enjoying a meticulous cleaning. Sonic flow cleaning 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. American Dupont bristle Adopt DuPont American tynex classic 0.152mm bristles, brush approved by FDA and UV sterilized. Ultrasonic electric toothbrush can effectively remove plaque and reduce gingival necrosis. 3D cambered brush appearance fits the radian of your teeth. Detachable brush head, the gap make it perfect The gap between the 2 units is to ensure that the brush head will not colide the host during high frequency vibration, which makes the motor more powerful. The brush can be vertiacally inserted into the grip,easy to clean and replace. Fit for teeth without leaving dead ends 3D cambered brush appearance fits the radian of your teeth High-density 3D planting Snap-in design, easy installation More details Suit for sensitive teeth Grind round bristles, prevent bristles from causing damage to the gingiva when vibrating at high speed, and fully care for sensitive teeth. Specially developed for humid environment Adopt metal-free hair planting technology, brush head is more sanitary. Dupont bristles are wear-resistant and non-absorbent, preventing mold in wet toothbrush environment. Vacuum package Each brush head is provided with dust cover and vacuum packaging, medical safety standards. Massage teeth and gums in extremely gently frequency Ultrasonic electric toothbrush can effectively remove plaque and reduce gingival necrosis. High frequency acoustic vibration for efficient cleaning. Improve Your Oral Health Remove up to 100% plaque for daily clean End round bristles, avoid scratching your gum waisted shape design, deep into hard- to reach area. 3D cambered brush appearance fits the radian of your teeth. Change the toothbrush head regularly Dentists advise to change the toothbrush head every three months for oral health. Deep cleaning, effective removal of stains The brush head deep can cleaning of the mouth, effective removal of yellow stains and tartar, matain your fresh breath.