The material of the U-shaped Toothbrush is 100% safe food grade silicone, so it is healthy for your child to use. Its material is very easy to clean after use, you only need to rince it under water with your fingers and let it dry like any normal adult toothbrush. The flexibility of the silicone used for the U-shaped Toothbrush gives it access to the normally hard-to-reach places in your child's mouth. The U-shaped Toothbrush is an easy, fun, and efficient way for your children to brush their teeth.