Crest 3D Whitestrips, Supreme Flexfit, Teeth Whitening Strip Kit, 42 Strips (21 Count Pack)

• Lasts 18 months and beyond
• Use once a day for 1 hour.;Whitestrips are so easy to use: you can whiten while you walk, talk, work, even drink water
• Our whitest white for a multi-dimensional smile. Form: Sheets
• Exclusive Flex Fit technology design stretches and molds to custom fit your unique smile. Note : Storing Crest 3D White Whitestrips in a refrigerator is fine, however, storing product in a freezer is not recommended
• Advanced Seal Technology’s no slip grip stays put so you can talk and drink water while whitening teeth.