This natural teeth cleaning kit uses nano technology to give you stunning white teethr removes stains caused by smoking coffee food colouring and any other dark substancesr use the kit once a day during the first week then 3 times during the second weekr kit contains 2 x sticks and 10 x refill spongesr eco friendly product does not contain peroxider secret formula is activated by waterr 999 natural ingredientsr safe and easy to user blue stick is reusable 4