Use this fingerprint ink pad to authenticate checks legal documents and personal papers by putting your unique fingerprint on them. Inker delivers clear clean permanent fingerprints but leaves no residue on your hands. The pad has a long-lasting ink supply and will produce more than 1200 fingerprints before drying out. Adhesive backing makes it easy to set up. This nontoxic inking disk is made from recycled wool. It is ideal banking casinos supermarkets real estate and schools.