abcOralCare， New Generation US Patented， Non Nylon， Tapered， Soft and Ultra fine bristles – Hannull 4 toothbrush – Deep penetration pack of 4<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> Zigzag Pattern - High-density zigzag-patterned bristles effectively remove plaque， the major contributor to gum disease </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Concave-Shaped Bristle - Patented concave-shaped bristles create more contact for better results. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Ultra-Fine Bristles - Tapered .03mm bristle tips penetrate deep into the pockets between teeth and gums to remove plaque. 100% Tapered Ultra Fine Bristles </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Compact Head - 2.5 times the size of an average adult tooth， the head cleans even the hard-to-reach areas. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> FDA Registration Number 3008588901 BPA Free </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51jVYA%2BXtPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51X4SQvLWOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41CIWjYBAPL.jpg" noproxy>