... , PP tube,aluminium shell,Anti leaking brush 3, click pen, lip gloss pen, etc. Specifications1.easy to use and portable 2.favorable ... . 3.available for logo print.The main ingredients of the pen is a kind of peroxide,hydrogen peroxide or carbamide peroxide ... , whiten teeth wherever you are and whenever you want.instant whitening.whitening pen shell are available for golden, black, silver color teeth ...