Whether you're organizing an entire warehouse of inventory or cleaning up a craft room at home, Magnet Source magnetic labels are a simple and cost-effective solution to instantly bring order to your space. C-channel magnetic data card holder kits take the guess work out of using pre-printed or handwritten data cards. The “C” shaped profile holds data cards securely and makes it simple to slide in labels, bar codes, name tags and more. Pre-cut kits of magnetic data card holders come with everything you need to get your labeling project started. Kits include 25 pre-cut C-channel magnetic data card holders plus 35 perforated paper data cards to fit.