... Easy to use OEM avalible Teeth Whitening Pen & Keep Bright Pen 2 ml 4 ml the customazied ... Design service High Quality, good effect Teeth whitening pen Customize any strength of gels includingCP: 17%, ... tea and red wine.The super-convenient Whitening Pen allows you to whiten anytime, anywhere! Whitening ... after an initial whitening treatment, the Whitening Pen is the perfect way to maintain your whiter ...