Chewing brush for children to strengthen chewing power. This is a brand new, unused item. Recommended item for raising children's oral health. My child also uses it, and it doesn't seem like I need to replace it very often, so I'm selling some extras I bought. Suitable for ages 0 to around 12 years old. My child is 0 years old, and we use it like a teether. ★ For developing chewing power ★ For teeth alignment ★ For underbite If you're interested, please give it a try. - Product Name: Chewing Brush - Purpose: For children - Features: Dental item to strengthen chewing power - Instructions: Comes with instructions on how to use it It will be shipped via post, so the box may be slightly crushed. Please be aware of this. (The box may be taken out and folded for packaging, or it may be packaged without the box.) *If you want the box, please let me know. Thank you for looking.