UBICON Lucky Strip Bill Acceptor Cleaning Card with Miracle Magic (50 Cards) Cleans the components that it by passes in the bill acceptor, removing dirt and contaminants Use this card for regular maintenance to maintain high acceptance rates and improve the life of the equipment Easy, effective and safe to use; Comes complete with instructions on each pouch of the card The frequency of cleaning of each machine depends on the usage of the machine and the location of the machine; Regular usage of these cleaning cards will significantly improve the reliability and life of the machines.