describe Specifications: 7 pieces application: 1. Exogenous tooth discoloration (affected by coffee, tobacco, sauce, tea, food, etc.) 2. Teeth discoloration (mild dental fluorosis or tetracycline staining) 3. Hereditary yellow teeth 4. Other causes of tooth discoloration 5. Anyone who wants a whiter, brighter smile feature: Provides a non-slip grip so the strip will stay in place until you remove it You can talk and even drink water while whitening your teeth Remove the mold according to the tooth shape Tape peels off easily and cleanly Steps to easily create a beautiful, white smile: 1. Peel off the white strip from the backing 2. Apply firmly to tooth 3. Show a whiter smile Package includes: 1 x Advanced Whitening Strips