![This sustainable toothbrush's bristles change color to tell you its time to replace the head! - Yanko Design This sustainable toothbrush's bristles change color to tell you its time to replace the head! - Yanko Design](https://www.yankodesign.com/images/design_news/2021/04/auto-draft/5-switch_yankodesign.jpg)
This sustainable toothbrush's bristles change color to tell you its time to replace the head! - Yanko Design
![Amazon.com: Oral-B Kid's Electric Rechargeable Toothbrush with Charger, Featuring Extra Soft Color Changing Bristles, for Ages 3 : Health & Household Amazon.com: Oral-B Kid's Electric Rechargeable Toothbrush with Charger, Featuring Extra Soft Color Changing Bristles, for Ages 3 : Health & Household](https://m.media-amazon.com/images/I/717xHg3y0gL.jpg)
Amazon.com: Oral-B Kid's Electric Rechargeable Toothbrush with Charger, Featuring Extra Soft Color Changing Bristles, for Ages 3 : Health & Household
![This sustainable toothbrush's bristles change color to tell you its time to replace the head! - Yanko Design This sustainable toothbrush's bristles change color to tell you its time to replace the head! - Yanko Design](https://www.yankodesign.com/images/design_news/2021/04/auto-draft/6-switch_yankodesign.jpg)