Useful U-Shaped Brush Head: The softy U-shaped brush head of toothbrush is made of quality silicone, which can brush and clean the teeth in 360 degrees, especially designed for children tender and sensitive tooth. Safe And Reliable For Kids: The toddler U-type toothbrush adopts the soft bristles, giving your children a gentle cleaning; soft brush head helps access hard-to-reach areas and achieves a better cleaning. Gentle For Sensitive Teeth: The whitening massage toothbrush can gently stimulate and massage gums with safe, soft bristles ( after ran in warm water) to stop sensory overload, nice for those people who are overly sensitive to brushing and have issues of oral motor and are orally defensive.