Use this fingerprint ink pad to authenticate checks, legal documents & 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 & will produce more than 1,200 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 & schools.