Each toothbrush head with Protecting Cover and Individually Sealed,It could be nice for Healthy Teeth Brushing and Hygienic Storage.. desire our toothbrush heads in your electrical toothbrush?1. Healthy and Safety: Food Grade Material, Multiple Certification(CE/RoHS/FDA/LFGB...);2. Good Quality with Reasonable Price: Each brush head will final use for 2-3 months, higher than others;3. Perfect Compatible with SOOCAS All collection Sonic Toothbrush: X1/X3/X5/X3U/D1/D2/V1/V2(NOT used to EX3)4. More Choice for You Choose: Different affords can be highly event your favor and make you satisfied;Note: Non-original brush head, overall aim brush head.