Tooth Cleaner Tooth Cleaner Yellow Tooth Cleaner Oral Care Tooth Beautifying Gel Tooth Cleaner 4ml Features: Easy to use: pens are usually designed in a portable pen shape, easy to operate, and users can easily use them anywhere. Whitening effect: The main function of a teeth whitening pen is to whiten teeth. They contain or other active ingredients that can stains from the of teeth, making them appear whiter and brighter. Quick acting: Most teeth whitening pens will quickly show results after use, which can improve the whitening degree of teeth in a short period of. They are suitable for situations that require improvement of tooth color. Fresh taste: Toothbrushes usually contain oral freshener or perfume, which can make your mouth feel fresh after use and provide lasting breath freshening effect. Application: The design of the toothbrush allows for control during brushing, avoiding application to the gums or other oral areas, making it safer and more effective to use. Product Description: Product Name: Toothbridge Pen Net content: 4ml Includes: 1 * Toothbridge Pen