Washable inking foils are a single-use, disposable inking solution. Strips have offset tabs making them easier to open. Simply peel the two halves apart and a fresh, even layer of ink is revealed. Fingerprints may be inked on both sides of the inking foils. The patented ink formulation dries instantly on card stock, but won't dry on an open ink foil strip. Washable ink foil strips are single use, so they are ideal for child fingerprint programs. Once complete, simply press the two halves back together and dispose of them. No harmful chemicals or messy solvents are required to clean the ink. Simply rinse under running water and wipe dry with a towel or ink remover towelette. Convenient and easy to use.