Tatco Black/White Magnetic Label Holder 1-3/8" X 4-3/8" Easy-To-Use, Magnetic Label Holder Is Ideal For Use With Metal Filing Cabinets, Shelving, Storage Cabinets And Other Metal Surfaces. Design Features A Heavy-Duty Magnetic Vinyl Back, Clear Front And Front-Side Thumb Notch. Label Holders Are Easy To Remove Or Reposition. Label Holders Include White Label Inserts.