Replaceable Electric Toothbrush Heads for DR C1/S7 Sonic Electric Toothbrush Sensitive Cleaning Tooth Brush Heads DescriptionReport ItemPS:Suitable for DR BEI C1Features:1. Soft DuPont bristles, correct for sensitive tooth to use2. Ultrasonic electric toothbrush can effectively get rid of plaque and reduce gingival necrosis. Adopt DuPont American tynex normal zero bristles bristles,gently for your teeth bristle tip diameter, deep clean the space between teeth5 accredited through technique of FDA and UV sterilized sealed packing, much more secure to apply filth capTips:1. Many electric toothbrushes have same interfaces but should not compatible. Please make sure you purchase per the corresponding model on the details page. Otherwise, adaptation isn't guaranteed. Non long-established brush heads, discipline to receipt of the actual item.