Master Magnetics Data Card Holders, Magnetic Labels, Comes with 25 Heavy-Duty Magnets and 35 Perforated Cards (3" High X 5&rdquo; Length) RE90CUT5BXS01 MAGNETIC CARD HOLDER: This package comes with 25 pre-cut flexible C-channel magnets and 35 perforated data cards. Each card slides nicely into the magnetic channel. Print or write on the cards to label file cabinets or metal shelves. If you need more labels, you can buy an additional pack or cut any paper that is 0.031 thick or thinner HEAVY-DUTY MAGNETS FOR INDUSTRIAL USE: Suitable for a variety of industrial settings, these magnet labels can withstand continuous exposure to temperatures ranging from -15 to 160 degrees Fahrenheit. Mount the card data labels to warehouse shelving, machines, and freezer doors. Keep everyone on the same page in your workspace and avoid communication barriers MORE EFFECTIVE THAN SELF-ADHESIVE LABELS: Compared to self-adhesive labels, these magnetic data card holders will save you a ton of time and money. Plus, you wont need to worry about cleaning and removing sticky tape residue. Each magnet can be easily removed and repositioned whenever you need to make changes FOR COMMERCIAL USE: These magnetic label strips can hold printed or handwritten inventory labels and data cards containing important product information such as names, SKU numbers, barcodes, prices, descriptions, door labels, and more. Use them for point-of-purchase displays. These labels for shelves are great for whatever you can think of PRODUCT DIMENSIONS: Each flexible C-channel magnet is 0.125 inch thick, 3 inches high, and 5 inches long. The cards are 0.031 inch thick and 3 inches high and 5 inches long. This allows a large space to display data. Extra data cards can be purchased separately if you need more