Product Information Material: Silicone+PP Disinfection method: wash with warm water Type and size: small (2~6 years old), large (6~12 years old) Package included: 1 x U-shaped toothbrush (Not Include AAA Battery ) Feature: High quality material: Made of food grade silicone. The material is safe, there is no peculiar smell, and the baby is healthier to use. The silicone brush head is resistant to high temperature and can be disinfected at ordinary times. Special U-shaped design: Different from traditional toothbrushes, we use a unique U-shaped brush head design, which fits the teeth better. The U-shaped design fits the mouth better, making it easier for babies to accept. Babies can brush their teeth while playing. Healthier Care: U-shaped brush head design, 360 cleansing deciduous teeth. It is easier for babies to clean their teeth. Clean teeth in all directions to make the oral cavity healthier. Let babies love to brush their teeth: Easy to use. Put toothpaste in your mouth and press the switch to clean your teeth. The brush head can be cleaned in all directions, making it easier to brush your teeth. How to use: Shake the toothpaste well before use to ensure that the toothpaste is squeezed out evenly. The front and back of toothpaste. Tap the switch to start vibrating the toothbrush. Just rinse the toothbrush after use. Note Please allow 2-3 cm difference due to manual measurement. Besides different computers display colors differently, the color of the actual item may vary slightly from the below images, thanks for your understanding(1 inch = 2.54 cm)