Product Package:The Carebest teeth whitening kit contains 7 pairs (14 strips) of teeth strips, a teeth color comparison chart.Carebest teeth whitening products are certified safe, professional and safe .You can be used with confidence. Safe and Comfortable: Adopting slow-release technology, it will not stimulate excessive secretion of saliva during use, ensuring that the whitening active agent will not be decomposed by saliva and improving the teeth whitening effect. Slim and Invisible:The use of double-layer laminated technology makes it thinner, more transparent and invisible. When using, the gelexpands once it contact with saliva to wrap your teeth better and improve the whitening effect. No Residue On The Tooth Surface:Peel off the strips after use, there will be no gel residue on the teeth, and there is no need to clean the mouth again. Getting bright, white teeth just got easier. Gentle Whitening:PAP+ teeth whitening strips break down stains through redox action. PAP+ whitening strips do not have any risk of sensitivity, pain or damage during use, safely and gently protect teeth enamel, suitable for sensitive teeth.