Cardkleen Presaturated Magnetic Head Cleaning Cards, 3 3/8" X 2 1/8", 25/box Presaturated cards instantly clean magnetic heads on point-of-sale credit card readers, access control/ID card readers and all open systems. Just swipe to clean. Nonabrasive and remarkably easy to use. Reduces reading errors on most machines. Contains 25 pre-moistened cards that are individually wrapped to preserve moisture and keep them saturated.
