These crystals are a boon to causing two surfaces to slide apart. They react much as fanning powder did on playing cards. If you use cards, this will replace that old powder and last ten times longer. When applied to paper, wipe the surface with your hand, and no one can detect the coating. I have applied them to the pages of a book, wiped the pages with my hand several times, and it made no difference to the operation.
Unlike other powders, this will stand up to repeated use. The books that I had applied my crystals work today as they did when first applied. I can not tell you how long they will last. A third of an ounce is supplied in a glass bottle with a roller ball applicator.
No effect is provided. Once in your position, many applications will come to you.