Description: It is healthy and no harm to your body because of its natural elements which is gentle to your tooth enamel, and ultrathin texture make it be comfortable and soft to sticking. Indisputable that it is easy to use because the product is with the adoption of minimalistic feature. It will not cause discoloration of metal porcelain teeth. Teeth whitening strips act on the deep and superficial layers. It is an effective tooth stain remover that removes the effects of smoke, coffee, red wine and tea stains. Ultra-thin material is more suitable for teeth. The length of product is 9cm and the width is 4cm. It is super-compact design for you to use at home, in office, driving, traveling, anytime and anywhere. It is safe to use and easy to carry. Item Name: Teeth Whitening Strip Material: Gel Shelf Life: 3 Years Features: Effective, Convenient, Safe Size Details: 9cm x 4cm(Approx.) Skin type: all skin types Instructions Included: yes Manufacture Country: China Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 7 x Teeth Whitening Strips