CardKleen Presaturated Magnetic Head Cleaning Cards provide a quick and effective way to maintain magnetic stripe card readers and point-of-sale equipment. Each card measures 3 3/8" x 2 1/8" and comes presaturated with a cleaning solution that safely removes dirt, dust, and residue without damaging sensitive components. Conveniently packaged with 25 cards per box, these cleaning cards help ensure reliable card reading and extend the life of your equipment.