Get whiter teeth with Crest 3D White Strips. Crest Noticeably White Whitestrips makes it easy to whiten teeth and reveal a brighter smile using proven time-trusted enamel-friendly ingredients. The teeth whitening kit features the same enamel-safe whitening agent as dentists use visibly lightening and fading stains with every use. The slim wrap design is substantially less bulky than store brand wraps empowering more comfortable use. The kit includes 10 treatments each with one upper and one lower teeth whitening strips. Simply affix in place and leave on for 30 minutes and then remove. For even more whitening power brush your teeth twice daily with Crest 3D White toothpaste. Each unit includes one whitening kit; additional Crest products are sold separately.