Crest 3D White Professional Effects Whitestrips Teeth Whitening Strips Kit, 40 Treatment Twin Pack (80 strips total). Free 2 day shipping.
https://www.walmart.com/ip/Crest-…thena=true
As a comparison, Amazon sells half the amount of whitestrips (40 strips total) for 39.99.
https://www.amazon.com/Crest-Prof…6EUTK?th