【Brand New, Unopened】Crystal Whitening Pen - Set of 2 【Product Overview】 The Crystal Whitening Pen is an easy-to-use whitening product. It contains 2 pens with 2ML of product each, and the twist-style applicator makes it easy to apply. 【How to Use】 Before use, twist the pen to dispense the whitening gel from the applicator. By incorporating it into your daily care routine, you can achieve whiter teeth. 【Effects and Features】 With continuous use for 2 weeks or more, it effectively removes yellowing and stains, allowing you to experience a beautiful smile. Its compact size makes it convenient to carry, so you can easily use it at the office or on the go. - Product Name: Crystal Whitening Pen - Contents: 2ML - Quantity: Set of 2 - How to Use: Twist-style applicator - Effect: Whitening effect with use for 2 weeks or more - Features: Convenient to carry and can be used at the office Please understand that this item is stored at home.