CREST Whitening Strips 3D *Before/After 12 Treatments -Vivid Plus Teeth Enamel Cleaning 30 minutes 

Video shows how to place strips on teeth and a before/after look of the completed 12 treatments . Spoiler Alert: for the price of this product, I wasn't happy with the results. Good Luck
amzn.to/3Y4pLm0 Crest
amzn.to/4eIeMWf Less Expensive Brand