Baby Buddy's new 360 degree toothbrush is truly innovative — it is the world's first 360 degree designed toothbrush. It was developed in Osaka University Dental Hospital of Japan. The toothbrush has unparalleled cleaning power thanks to the 10,000 micro fine bristles —10 times more than the average toothbrush. Circular rings firmly hold bristles in place, while spacing washers between bristle layers help make it more effective for removing plaque and keeping the brush clean. Also works great to support tongue cleaning and massaging gums. Step 1 features 0.07 mm bristles and is intended for children 4 – 24 months.