$5 w/ Prime free shipping点我购买
Amazon offers a Crest 3D White Sample Kit bundled with a $4.99 Amazon Credit for $4.99 with free shipping. (The credit is redeemable for select Crest and Oral-B products.) Assuming you'll use the credit, that makes the item essentially free and the lowest price we could find, although we saw it for $3.99 with a $5 credit last month. The items include a Crest 3D White 1-Hour Express Whitestrip treatment, Crest 3D White Radiant 2.5-oz. Mint Toothpaste, and Oral-B Glide Pro-Health Floss.
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