new and high quality Lightweight and portable Convenient to use Great tool to whitening teeth Effectively make tour teeth white Give you confidence Can safely and effectively remove many external stains Applicable to all kinds of exogenous turbidity such as smoke stains, tea stains, coffee, , red wine, colored food, bad habits and other reasons caused by yellow teeth, For severe fluorosis, severe tetracycline teeth, the use of this product has improved, but the effect is limited. Specification Material:gel Color: blue Capacity: 2.5ml Specifications: Lightweight and portable Convenient to use Great tool to whitening teeth Effectively make tour teeth white Give you confidence Can safely and effectively remove many external stains Package Included: 1 x Teeth Whitening Pen Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings.