Sonicety Replacement Brush Heads for Sonicety HI-910， 4-Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> Materials: ABS， TPE， Dupont Nylon Bristles </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Heat Resistance: 70℃/158°F </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41zGU8jlyRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4121Db%2BrnoL.jpg" noproxy>