5D Whitening Strips - 7 Day Supply - 14 Strips Crest 3D White Brilliance 20g * 1 set - Heat-Activated Whitening (Quasi-Drug) Contents: 7 sets, 7-day supply (for upper teeth + lower teeth, 14 strips) Each sheet contains 2 strips, one for upper teeth and one for lower teeth, for one day, one use. Instant purchase without comments is available. *Unused, but stored at home. Please refrain from purchasing if you are sensitive to this.